partiton table deleted

I had such a wonderful program edit my partition table. Now I need the partitions put back. But I don't know where they were exactly, so I can't manually recreate them (If that is even possible) I have insanely important data on that drive (No lectures about backup please) The drive originally (Before the table pas damaged) contained 2 partitions made by myself and the "system reserved" 100 meg partition that windows 7 creates. The program has created other partitions, but not formatted them. How do I get my partitions back?