im not farmiliar with that application, but by the looks of the error message you get, its a port connection, the default port for most networks is 6667, so try this....
/server irc.p2p-irc.net 6667
then wait til it connects, and type...
/j #umpc
_____________________________
alternatively, there is a java irc client here.....
http://www.demonoid.com/chat/
(the above link will still require you to type "/j #umpc" once you are connected.
hope this helps.
[Sony UX390N]
OS: Windows Vista Business [Bloat Free]
Display: Samsung 22" Widescreen LCD [color=White][226BW][/color]
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