No. Have you not read the 1000 other posts here that all say to NEVER install a new poser version into an old one?

Sorry, but it seems this exact same question has been asked every other day for about 2 weeks now, and the exact same answer has already been given every other day as well.

All you do is install P7, and then add your p6 install as an additional runtime.

Use the management tools EF has built into the program.

Way too many people take way too many things way too seriously.