Sorry, but your IP address is currently blocked because it has been listed as an OPEN PROXY address. OPEN PROXIES are machines which allow people to mask their own IP for anonymous use. By itself, that isn't a horribly bad thing, however open proxies also allow SPAMMING SCUM to be anonymous as well and since most SPAM signups (people who join only to advertise) come from anonymous proxies, we do not accept signups this way.
If you are not intentionally anonymizing your connection with a public proxy service, your machine is likely insecure or hacked. Please see http://cbl.abuseat.org/faq.html or www.spamcop.net for information of resolving the problem.