Question : Use Palm TREO to Remote Desktop to client PC's

I've been using Remote Desktop (from a PC) for years as a support tool for my customers.  On any number of LANs, I have a router setup with port forwarding.  I've gone into the registry of each client PC on the LAN and changed it's listening port to 3390,3391,3392, etc., for as many pc's as are on that LAN.  I then access a particular PC using RDC with this format - xx.xxx.xx.xx:3390 (or 3391 or 3392, etc).  I would now like to use the same type of access from my Palm TREO700WX.  

I have run into a couple of problems.  So far, using remote access as provided with the Windows Mobile OS, I've been able to only key in the Static IP address of the router "xx.xxx.xx.xx".  I've not been able to add the colon with the listening port ":3390". I don't know if the TREO has a certain number of digits it allows to be typed in this box or what?  Even so, this method does at least get me to the LAN's Server desktop (listening on default port 3389).  I could then RDC into one of the clients from the server, but this is cumbersome.  Any solution?

The second part of the question concerns the screen shot that I receive once connected to the server as described above.  The TREO has a checkbox in it's parameters to "fit" the remote desktop to the TREO's screen - doesn't quite work.  I'm only able to see a portion of the Server's desktop and it's almost impossible to navigate to needed Icons that reside on the server's desktop.  Any solution?

That was a mouthful.  A good solution would be rewarded with extra points.

Answer : Use Palm TREO to Remote Desktop to client PC's

Buy an iPhone.  The RDP client apps are MUCH better than RDP on any Windows Mobile or Palm device. Seriously!  You can move the RDP by dragging your finger on the screen.  You can view the RDP window in landscape, etc..