I've successfully installed Centos 5.1, which im now using to type this post on.
The bug didnt show up on 5.1, and partitioning went without a problem along with the rest of the install.
The only problems i've encountered is getting the apps installed that i run, and the lack of koffice, although i do know theres a fudge to get it installed, but it looks messy, so i'll give it a miss. Eventually i found the EPEL and Yellow Jacket repositories which sorted my must have apps like abiword and gnumeric, but still there are one or two annoyances.
Tomorrow im going to try and compile the 2.6.24 kernel source so i can fix all the nagging SATA errors i have (mostly audit errors), then i'll leave it as it is.
All in all a reasonable install.