Well I got this from another forum. I figured I'd post it here in case someone else stumbled along and was curious. Steps 6-10 are the helpful part (for me, at least. For the computer illiterate steps 1-5 are great, too
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1. Download the roster. It has to be a "Maxdrive" file, which will end in ".max". Download it to your Desktop.
2. Plug in a USB flash drive into the computer.
3. Go you My Computer, and then double-click the USB drive.
4. Drag and drop the file from the Desktop to that.
5. Take the USB flash drive out of the computer and plug it into your PS2.
6. Put the AR Max disc into the PS2.
7. Once it loads up, go right once and select "Max Memory".
8. Choose the picture of the USB drive as your "primary device".
9. Push left, push X at the file to select it, push right, go down to "Uncrush" and push right again and select "Uncrush to MC1".
10. Press triangle twice, then Start. Go over to Launch Game. Put in NCAA 07, and push OK.