I've tried this beta and have the following to report:
1. This resolved an issue I had with accessing via wifi from a remote location. I did not have problems with 3g, just wifi from my work for example.
2. I attempted to use the Auto-Config Router Port option but this did not work correctly for me. I have two instances of iCamSource running for two different cameras on the same host. It appeared that one of the instances would correctly map to the router but the other one would not. It appeared to be whichever connected first. Not a big deal for me as it works fine with the portforwards in place on the firewall.
tono1110 - In your other post you said you were seeing the "No Sources Found" message. If you are seeing the Source COnnection Error (not the No Sources Found error), there is a new BETA version (1.4.2.6) of iCamSource that might resolve your problem. The new BETA version of iCamSource is available for download at:
Windows: http://skjm.com/icam/iCamSetup1.4.2.6.exe
Mac (Intel-only): http://skjm.com/icam/iCamSource1.4.2.6.i386.dmg
If you could check the Auto-Config Router checkbox before clicking the Start button, the iCamSource will attempt to automatically forward a port in your router. When you click the Start button, what status message appears above the Auto-Config Router Port checkbox?