How do I switch TurboTax packages used when amending my return? I've received a Form 1041 with Schedule K-1; my original package doesn't have a place for the new info.

Original filing was with the Self Employed package.  I can't find a place in the interview to enter the new info.  Checking the help database suggests that I need the "Premier" package.  But I can't figure out how to change packages.