Unfortunately, nobody can help you if you don't post WHAT exactly are these errors or the issues. Have you updated your graphics driver with latest improvements/updates?
http://www.carnagecontest.com/faq.php
Just read the FAQ, some parts are covered by it and if you still have problems then come here with a detailed reply.
What a shame... I loved Carnage Contest back in the days when people actually played it actively and it was updated. Now the only way the CC section of the forum is revived is with crappy threads like this written by people who don't know how to describe one simple problem. Breaks my heart :^(.