[Plugin: Twitter Widget Pro] behind a proxy

Hi there,

my apache is behind a proxy server so he can not get the tweeds.
I googled already, that this is no option i can set in the apache2.conf or php.ini and that the script has to do it.
So, where do i have to put which code for the proxy?

Thanks for your help!

http://ww.wp.xz.cn/extend/plugins/twitter-widget-pro/