[ubuntu] TomCat 6 in a Ubuntu VM - Network Access

Hey,

i hope someone can help me.
The Guest-System is Win 7 - 32 bit.
It is virtualized via VM Player.
The VM is an Ubuntu 64 bit with TomCat 6.
I solved it, that Ubuntu uses the Proxy via a ready-Proxy-URL-Script, that works for the Browser and so on.
TomCat is also reachable over the Network.
That is all fine.
But now i need TomCat to have Access to the Internet, because I am using a Java Application, which makes a Screenshot of a Site in the www.

I am very thankful for help.