Welcome to FT, Rodenback!

It's never easy (and often impossible) to transfer miles between airline programs. Typically within an alliance you would use your TG miles to book an award on another Star Alliance flight, but there's really no provision for actual point transfer.

http://www.webflyer.com/programs/mileage_converter/ should give you everything you need to investigate point transfers, but in this case you'll see that there is no way to transfer TG miles to any other program.