Thanks for the help guys.
To answer the questions, it said Pro in the corner, the license info was entered and accepted.
I dont know what the issue was, but I managed to fix it.
I uninstalled all traces of Sketchup from my computer, and reinstalled it. This time, a red welcome window popped up and said, my Pro version expired (because I hadn't entered my lisence yet) and these are the features that only Pro has... blah blah blah.
That never happened the first time I installed Pro.
So I entered my license info and now all is good.

I don't know what the issue was... it seems like either cookies or something were getting it all confused, or somehow not everything that needed to was downloaded or something.

I downloaded the free trial of 8 Pro and imported a .dwg just fine.
When my trial expired I bought a 1yr student license, now I can't import any .dwg files!
Why did it work with the free trial, but it doesn't now that I paid for it!?