Sorry the program can't split it up. You each have to do a separate return. If you have the Desktop CD/Download program you can use it for both returns. You get 5 efiles. In the Online version you each need to start a new separate account and pay for each.
If you used Turbo Tax last year you should start a brand new account for yourself and not transfer from last year. You can not remove a spouse or switch the order of names.
Oh but if you not divorced yet you can still file a Joint return. Joint should be better than Married filing Separate.
