1. "System Files Update" thingy usually comes on whenever I try to download or save anything. I went to Add/Remove programs and think I got rid of it? I don't know why it was happening...except it seems to be related to the software program Microsoft Front Page that I removed (tried to remove) a long time ago, because that reference always shows up when it appears. This SFU thing was happening for a long time (months and months) and I would just X it out as I could.
2. I cannot delete any files. This was happening before I tried to do anything abut the SFU mentioned above. When I go to right click (or any other way) on a file to scroll down the menu to delete I get an hourglass and nothing happens. Using Ctrl+Alt+Delete shows that it is "not responding" and I have to end task. Usually makes message and white background come up that says 'unstable system'. So I click on that link and background turns green again.
3. Start-->shutdown-->restart does not function. It doesn't necessarily freeze up, but also will not restart and I have to manually push the restart button on the tower. Then I get scandisk for not shutting down properly.
4. IE doesn't work anymore; ususally shows "illegal action" and shutdown on just about anything. Tried to update, didn't matter. Have now resorted to using Netscape and Mozilla.
I did run a virus check which supposedly did discover a couple of trojans but doesn't seem to have affected any of these issues.
My HijackThis! log doesn't seem odd (is posted below). To me, anyway.

I did recently install a new printer. Nothing out of the ordinary seemed to happen with that. The SFU and IE problems stayed the same, the deleting and shutdown stuff more recent but not immediately after the installation.
I would TOTALLY appreciate any help I might be able to get for these problems. THANK YOU VERY VERY MUCH!!!!
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\ACS495\MIXGHOST.EXE
C:\PROGRAM FILES\CREATIVE\SBLIVE\AUDIOHQ\AHQTB.EXE
C:\PROGRAM FILES\MS HARDWARE\MOUSE\POINT32.EXE
C:\PROGRAM FILES\MICROSOFT HARDWARE\KEYBOARD\SPEEDKEY.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\COMMON FILES\REAL\UPDATE_OB\REALSCHED.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\PROGRAM FILES\HP\HP SOFTWARE UPDATE\HPWUSCHD2.EXE
C:\PROGRAM FILES\AWS\WEATHERBUG\WEATHER.EXE
C:\PROGRAM FILES\NETSCAPE\COMMUNICATOR\PROGRAM\AIM\AIM.EXE
C:\TOOLS_95\IOWATCH.EXE
C:\TOOLS_95\IMGICON.EXE
C:\PROGRAM FILES\STAY CONNECTED!\STAYCON.EXE
C:\PROGRAM FILES\HP\DIGITAL IMAGING\BIN\HPQTRA08.EXE
C:\WINDOWS\RUNDLL32.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\PROGRAM FILES\HP\DIGITAL IMAGING\BIN\HPQSTE08.EXE
C:\WINDOWS\SYSTEM\HPZIPM12.EXE
C:\WINDOWS\DRWATSON.EXE
C:\WINDOWS\EXPLORER.EXE
C:\PROGRAM FILES\NETSCAPE\NETSCAPE\NETSCP.EXE
C:\PROGRAM FILES\HIJACK THIS\HIJACKTHIS.EXE
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.tdameritr...m/welcome1.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.ameritrade.com/
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 5.0\READER\ACTIVEX\ACROIEHELPER.OCX
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [Mixghost] C:\ACS495\MixGhost.exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [AudioHQ] C:\Program Files\Creative\SBLive\AudioHQ\AHQTB.EXE
O4 - HKLM\..\Run: [POINTER] point32.exe
O4 - HKLM\..\Run: [Microsoft IntelliType Pro] "C:\Program Files\Microsoft Hardware\Keyboard\speedkey.exe"
O4 - HKLM\..\Run: [ccRegVfy] "C:\Program Files\Common Files\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [HP Software Update] c:\Program Files\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKCU\..\Run: [PopUpStopperProfessional] "C:\PROGRAM FILES\PANICWARE\POP-UP STOPPER PROFESSIONAL\POPUPSTOPPERPROFESSIONAL.EXE"
O4 - HKCU\..\Run: [Weather] C:\PROGRAM FILES\AWS\WEATHERBUG\WEATHER.EXE 1
O4 - HKCU\..\Run: [AIM] C:\PROGRAM FILES\NETSCAPE\COMMUNICATOR\PROGRAM\AIM\aim.exe -cnetwait.odl
O4 - Startup: Iomega Startup Options.lnk = C:\Tools_95\IMGSTART.EXE
O4 - Startup: Iomega Watch.lnk = C:\Tools_95\IOWATCH.EXE
O4 - Startup: Zip Disk Icons.lnk = C:\Tools_95\IMGICON.EXE
O4 - Startup: Stay Connected!.lnk = C:\Program Files\Stay Connected!\StayCon.exe
O4 - Startup: America Online Tray Icon.lnk = C:\Program Files\America Online 7.0\aoltray.exe
O4 - Startup: HP Digital Imaging Monitor.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
O9 - Extra button: AIM (HKLM)
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macr...ash/swflash.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoft...free/asinst.cab
O16 - DPF: {2871FC9B-5E34-4AAE-9E9C-EBD1652D5C92} (Rhapsody Player Engine) - http://forms.real.co...ne_Inst_Win.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://cdn2.zone.msn...ro.cab34246.cab
O16 - DPF: {E5D419D6-A846-4514-9FAD-97E826C84822} (HeartbeatCtl Class) - http://fdl.msn.com/z...s/heartbeat.cab
O16 - DPF: {233C1507-6A77-46A4-9443-F871F945D258} (Shockwave ActiveX Control) - http://fpdownload.ma...director/sw.cab