Can't use brushes after re-install -Could not load the brushes because the file is not compatible wi

I have CS3 Web Premium on an Alienware Area 51 M12j 7700i laptop.

Recently I had to wipe the HD and reinstall the OS, and everything else.

Photoshop deactivated, installed and re-activated fine, but when I try to use any brushes(except the default ones), I get:

"Could not load the brushes because the file is not compatible with this version of Photoshop"

This is weird as they worked just fine before I had to redo everything...

Anyone know what's the cause?

The file became corrupted or came from a more recent version of Photoshop.

corrupted.. maybe... but if you read the post, they worked fine until the rebuild...

And it's not "a" file, it's "many, many" files, maybe 40 or so brush files.