Yeah the updated download worked for most things but it gave me lots of error messages. MacDrive didn't work at all so I had to go back to 32bit which worked fine. Like I said before I don't see any difference with the 64bit version speed wise so with only 4GB RAM there isn't much point in messing around with it.
Yea, I should have went down to the 32 bit to use MacDrive instead of reformatting my external HD and losing a few Time Machine back ups. Oh well