Check and see if your ISP as NNTP service provider if they do you will need posting software like Yenc Power Post A&A
http://powerpost.cjb.net/ test it out in a alt.b.test group don't post to regular group until you know what your doing if you don't want to get flamed...
Theres a lot of good info here at this web site http://www.usenettools.net/
Good luck!
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