Gday.
After consultation, this is the advice from other Tech staff.
Do not use a different driver disc from another model of a dell computer or laptop.
Please read and print the instruction, How to reinstall drivers in the correct order here
After installing the OS and updates.
Please check this is the correct model, Dell drivers from here
See what results you get from clicking System Analysis.
It may be possible to use your Dell disc, but you will need to ensure it has W7 driver support.
Edit.
I have been advised that drivers be downloaded and burned to media before starting the OS installation, as a common problem can be no internet connection.