My Axim and my version of MG are the same as yours. The controller software, however, in v1.31. I didn't even know there were updates available!
OK, i checked out the chainpus site. Links to past versions do not appear there, but by changing a 5 to a 3 in the link i found that "my" version is indeed still there. You should be able to get it by clicking this:
http://chainpus.com/support/BGP100_v130.zip
Hope that works for ya!