Why can't this guy just remove all the offending partitions with his disk
partitioning software, quit to make sure the changes are saved, launch again
and make new partitions?  Then use mkfs to change partitions and format
these partitions.  Since he has the os on the other hd if he were to want to
check that everything is good before doing the install he could boot into
bsd and mount the disks to make sure that they are mounted as ufs instead of
the ext2.

From what I understand about the problem the issue is with the partition
table and dd'ing over the start of the partition is not going to fix that
problem.

I am really asking this to understand the ideas involved.

Thanx, BMG