1) There are alot of built in codes. You can view them all in the software
2) You can do it via wireless or memory card
3) DOuble check your DNS settings on the wireless page. Also, your routers DCHP settings and security settings (WEP, Filtered IP addresses etc.).
4) Learning is pretty simple. Make you page with the buttons you want. Load it on the Ipronto. switch the Ipronto to learn mode thrugh the left hand menu selection. Select the button to match and point the original remote at it and press the button.

Go to the properties in the PC software for a device to switch to the pre-programmed codes you want.

Hope it helps.