Looks like your server has something installed that is forcing a 404 error if any of the variables in the request has "http://" in it. So either disable that, or track your website as www.website.net instead of http://www.website.net
I tried it as www.website.com and as website.com and got the error result both times. I wonder if there is some sort of a coding issue with my website. It is not coming up on any of the search engines and has been published for ~2 months in what I consider an easy niche. I would expect to at least be in the top 100, and honestly the first page.
That definitely is not he script you get from the settings page. I would double check your have the URL correct.
Hmmm... did some poking around on it, and it appears your server is doing something completely different when the URL is included (the URL is needed for the system to know which URL to search for). The only thing I can think of is maybe it's screwed up mod_rewrite rule on your server or maybe some sort of spam prevention system on your server that prevents requesting URLs that contain URLs within themselves. One thing you can do to work around it, is have it search for URLs without http:// in them (it doesn't need it... and it appears that's what your server is keying on).