Is that a GPS receiver?
Anyway try this:
1. turn on BT receiver (make it discoverable)
2. turn on BT on Axim
3. click BT manager on Axim. click >new > Explore a BT device>
your BT receiver should now appear on the window. click it, and it should ask you for a passcode in the end, type 0000 (or whatever passcode that comes with your receiver).
4. at this point your device should be talking at each other.
5. fire up your GPS software, and happy trailing...
Hope that helps. I'm pretty sure someone can give a better explanation that what I have, but it should do the trick.