Ever heard of Ranish Partition Manager? Dunno....just a shot in the dark.....but it may do almost exactly what you're looking for. Only difference I can think of is that it only allows 4 active partitions for each physical drive. So if you have 2 physical drives, that's 8 partitions you can have active at a time. But if you are only using 1 physical drive, 5 won't work. Anyway, I dunno why you would need 5 partitions for any Windows OS.....I'd be interested in hearing the logic behind it, unless it's just for the point of trying to have 5 partitions....*shrug*
Just thought I'd throw in my 2 cents for what it's worth.

Oh yeah, Ranish Partition Manager is freeware too!

Digitalis