Can't install distros?

[fvs]

Here's the problem, I built this box(details below) and installed win xp as the default OS, It worked floorlessly.
Then installed Fedora 5 and chose automatic partitioning dual booting, Then after a week or so I wanted Fedora to be the only OS on the drive, so I reinstalled Fedora, this time I choose the option to Remove all partitions on this system, Fedora is my only OS, Now I'm wanting to see other linux distros on this machine, but I can't install them, went to install Ubunto live disk and got error message about hardware and couldn't install it, So I choose Cento, Susse and it had error message also. All of these distros are on DVD which were purchased. But my Fedora 5 runs floorlessly rock solid? How do I find out the problem? Thanks. fvs

My linux box is:
AMD Sempron 64 2800, Biostar TForce 6100 1GB Corsair, 16X Liteon DVD burner, 80GB Seagate IDE, Realtec sound card, 17" CTR IBM.

[falko]

What are the exact error messages you get?