Ok. Sorry, but i must now confirm that the bug really exists. I thought everything was due to the mobo's limitation, but i've tried using GParted Live CD (v0.3) and IT RECOGNIZES the partitions! Even if it can't manage beyond the 32gb (can only create an extended partition there, but windows 2000 crashes on reboot), however it can see the partitions that are on the hd. Ubuntu's installer can't, so i definitively confirm the bug.