I think the axim file has different ports set and doesn't have the custom dll's that were written for the Hermes.
The Hermes is a GSM phone so I don't think they have EVDO, but I'm a bit surprised the BT stack has caused the EVDO to stop working.
In the registry HKLM\Software\Widcomm\BTconfig\Applications\0003
there is a ComPortNumber of 11 set. The Name parameter is Dialup Networking so maybe this has something to do with EVDO?
We really need a tech wizard to get involved here.
BTW, don't post in the xda developer thread. I think they're already pissed at me because I kinda hijacked their thread. They want it to be used only for Hermes development which is totally understandable.

edit:
http://www.aximsite.com/boards/showp...&postcount=637
this makes me think that some changes like this might answer the EVDO problems. Going to an EVDO area tomorrow, will play guinea pig