Vista Ultimate 64 & Windows XP Pro File Sharing

I'm having a problem at the moment with both of these, I have files on my network which i have shared but no matter what i try i cannot get either computer to pick up the shared directories.

I've tried unsharing them & sharing them again, restarting both computers at the same time, restarting my router, setting Vista to public/home & work profiles & Turning on all options in the network control panel within Vista.

I'm kind of stumped now about how i can get these files to show on either computer. They worked fine when both pc's were XP PRO.

If anyone can help that would be great

Tried this? http://www.builderau.com.au/blogs/codemonkeybusiness/viewblogpost.htm?p=339270746 from this thread Networking with XP/Vista.
I assume the shares have permission, yeah...?

Thanks buddy that worked a treat, i was baffled lol

Very helpful thank you - was looking for something like this