I was getting the same message "internal error blah blah" and I followed the suggestion to run the search for Socket thing...it seems like it is not installed on my server. I followed the instuctions to edit four of the cgi files and it worked like a charm.
In General Settings click the Socket search link, if you get the error then click the "click here if you have an error" link and it will tell you how to edit the files to solve the problem.
