Currently,
SkyFire (see for example the roundup
HERE for more info) isn't capable of running on non-phone devices: it doesn't even start. This means you can't run it on anything Windows Mobile not containing a phone: Dell Axims, pre-phone (or even current; for example, the 110 / 210 series) HP iPAQ's etc.
My hacks to the rescue! Download
THIS archive and unzip the two DLL's into \Windows on your Pocket PC. Don't be afraid - they won't do any harm. They just make your Pocket PC pretend to be a phone. After this, SkyFire will work.