Eee Installation Error?

I have an Eee 1000HE.

I used to be able to install Windows 7 Betas just fine, but now when I went to go install the latest build 7057, it gets up to the Copying Files section, then jumps straight to 100%, then goes into Expanding Files, then comes up with an error about not being able to find the files!

I tried reverting to a previous beta that I knew worked, same problem.
I tried reformatting (through Ubuntu) and still can't get it to work!

Anyone else have this kind of a situation?

EDIT: I'm using a IDE -> USB Adaptor, tried two different DVD drives, same result.

I would LOVE to have Windows 7 on my Eee, but it just won't work!

I really need help with this, does anyone have any idea what-so-ever?