Well, I just got this prog work and it freakin rocks...
install RDM server on LAN computer and RDM client on BB...
Open port 6100 and point it to the RDM server IP...(I would suggest making this a static IP if it isn't already)
This is what I did and then figured out I needed to configure APN on the BB...I had written to support for RDM and they got to me after I figured it out. Figures. Anyway, here's what they said.
RDM client requires that you use an Internet access point name (APN) instead of a wireless access point (WAP). Most carriers have an Internet APN available and may charge an additional fee to use it. Contact your carrier and check if you are able to use their APN.
If you are already using the APN, check with your carrier that your Internet APN settings are correct.
On a BlackBerry device, you can enter or modify Internet APN settings by selecting TCP on the Options menu.
The Remote Desktop for Mobiles Client on BlackBerry use a direct connection to the Server through Internet without use the Blackberry Enterprise Server (BES). For a correct configuration of your BlackBerry for a direct connection to a server please read a topic:
"How to Configure Full Internet Access On BlackBerry" BlackBerry Internet - MSN/chat/web/telnet/TCPIP - No BES!
After configuring full Internet access on your Blackberry, select the type of connection "Direct access through TCP/IP". For that, use the main menu item "Setup" - "Connections".