You need to contact the frame manufacturer to see what machines it will support. Two items come to mind: the bigger the machine, the more it weighs. My 18" long arm is 60+ pounds. You need to make sure the frame will support this. The other thing is to make sure the carriage will actually move enough to let you quilt the entire depth of your new machine.
Looks like there is a yahoo group for your frame. Might also want to check there.