Understood. I get to the screen on the iPhone that gives me the passcode, but the iPhone isn't shown on the desktop when I click "Add".
A few things that' i've read elsewhere in regards to syncs using bonjour (which ewallet is using).
If you have a more complicated network setup where your wireless network is on a different subnet than your desktop then it will not work unless you can get your admin to make special dns changes to support it.
also, make sure you disable your firewall if you're having problems. if using vista, try to disable UAC which is crap anyway.
lastly, if the above is not the cause, then uninstall and then reinstall bonjour. there have been several reports over at the ilium blogs where removing and then reinstalling bonjour fixed the problem for them.
Good luck!!!