hey guys im on an older macbook that was just given to me and im trying to update from 10.4.11 to 10.6.4 i have the disk for the 10.6.4 osx, it came with my friends imac when he got it... when i restart and try to install it simply says that it cant be installed after the language select and i have to restore back to the 10.4.11 im stuck and any help would be greatly appreciated