Ok, I can see this is an old thread but what the hell...
I agree 2Pac is the greatest of all time, although lately I hardly listen to rap. Anyways the Ressuruction CD wasn't bad. But it did kinda suck, and I hated that song. I think it's a remix of Runnin' (originally with the Outlawz), the original is a little better. The new one has a crappy chorus. But this album is kind of a fresh breeze, since it has less remixed crap, cuz i was gettin' sick of that. Better Dayz really let me down. ANYWAYZ, everyone has their own opinion n taste, if you like (or liked it...) then enjoy.

Btw, this track (Runnin') is one of the few if not only that 2Pac and Biggie did together. There's also a live session with a few others you can find on kazaa.