I tried installing again, but only my secondary (500gb) storage drive appears. The drive with my blank and even the NTFS XP partitions do not show up. To make things clearer:

Drive 1:
Volumes C,E,F
-C (150GB) reserved for OSX
-E (50GB) stuff I'm working on
-F (50GB) Windows XP Professional 32 bit
Drive 2:
Volumes D
-D (500GB) storage

Now, the Disk Utility does not show anything from Drive 1.
Hope this helps with understanding the problem.

Nicholas.