Where’d my disk go? Help!

Was having problems with a machine and decided to have it rebuilt [format c and reinstall NT4]. The intent was to keep the drives configured that same [1 physical 2 logicals]. Now after rebuilding, the ‘D’ drive shows as free space. I don’t know what happened, someone else did the rebuild. I don’t think the ‘D’ drive has been reformatted, so I believe all the data is still on it.

Still the system doesn’t see it as a partition so … any ideas on how to get it back to being functional without losing the data that is on it?

Thanks for your help

Chris