|Good catch XPUser|
ubuntu, what XP is pointing out is that your motherboard BIOS is probably not 48 bit LBA compliant. That means the BIOS can't properly handle any hard drive larger than 127GB.
Look at the link below for more on that. Using it under those conditions, assuming it works at all WILL result in data loss or corruption.
The solution if this is the case, is to install a PCI based controller card. If you do that, you can then use SATA drives instead. That assumes you have a compatible PCI slot.
After looking into this further I suggest you just get a newer computer. If cash is an issue then buy something used.
Computers given to Goodwill will have specs 3 times faster than what you have.