Partitioning HDD

I have 20 GB HDD with 8 partitons (By Partition Magic 6.0) C:700, D:4000, E:2000, F:2000, G:4000 H:2000 i:2000 j:2000 MBs approx. I installed win98 on I:2000 MBs and WIN2K server on D:4000 MBS, can any one suggest how to mount another HDD and still boot WIN98 on I volume. Whenever i tried this boot is OK but unable to start either of my OS.