Proxy Question

I'm new around here and after browsing a bit I started using a proxy.
 
Problem is, when I open an image post with Anonymizer, I get a screen telling me I am permanently banned since January xx.

I had never heard of 4Chan in January.  What gives?  AND...

What (free) proxy server should I try?  Thanks.

OP.  CP?  pls speke Engerish. 

Like I said, I'm new here.

2.>>> Thanks.  Dumping Anonymizer, will load 'Tor' tomorrow.