You are correct that the Aspire will NOT run DDR3 memory. While the memory from ebay will work, the laptop will also run PC2-6400 sodimm memory(this is DDR2 memory). It is a mute point tho, because even if the 2 gig's of memory helps, the basic computer is very slow. I sold my acer aspire D260 within a month so i could buy a regular laptop. Since you seem to have taken your memory out of your laptop, i won't go thru the drill to remove it. PITA,isn't it. Too bad there isn't 2 memory slots as maybe 3 gigs of memory might make the laptop liveable.
It's actually decent running Windows 8. Ran awful with pretty much everything else. Just figured 2GB of RAM couldn't hurt.
But if that eBay one will work, that's good.