Check out the spinning babies site, I did lots of stuff from there, acupuncture, and moxibustion. J turned from head down to breech and around again within about a fortnight and I only need one moxi session to help.

I know a girl who also had a very stubborn transverse bub and she had moxi done and felt bub move. There are pressure points you can do yourself as well, although I wouldn't be too worried at 26 weeks as bub has plenty of room in there to turn a number of times before you go into labour! Good luck,