no, the forum is fine. Look, umm... http://www.gnu.org/software/grub/manual/grub.html
is a bit extensive, but a really useful guide.
what happens if you boot into knoppix (typing in knoppix 2 at the first command prompt you see) and then type cfdisk /dev/hda
? can you see the ext3? umm... it might say they are linux partitions, not ext3 - same diff.
tells me it's an ext3 problem- how did you create the partitions and can you lose them? (ie reformat)
look, it's late, but I'll do my best to get back to you in the morning...