Ok, I moved my partitions around a little, and replaced one of the primarys ( the EFI one) I found out, that partition hold "boot booster software"
Now, I have 4 primary partitions "C:", "D:", "PE:", and the 4th is where linux lives.
Linux then installed sucessfully on the 4th primary partition.
I have done some more reading up on partitions, and windows partitions specifically.
Just so I understand, If I make one of my partitions an extended partition, the computer can't boot from it, right?
Also, I am a little confused by the "PE:" partition. All the reasearch I have done on this type of partition says it is for recovery of vista, and my computer(s) all have XP. There is no mention of PE: in the XP documentation. It is possible that it serves the same function; and I might move that data to another drive for storage.
So, right now i have a 160gb hard drive, 4 partitions(3 for xp), and one for linux. Lets say I want to wipe it, and optimize my partition setup. What would you recommend as a good new partition setup; keeping in mind I want both xp and linux on my 2 machines right now.