For example, you placed following backlink to Trap17 in your index.html page
<a href="http://www.trap17.com/">Trap17 Hosting</a>
, the text line for
URL would be your domain, i.e. yourpage.com and
RECIPROCAL URL would be yourpage/index.html
I'm not sure if this advice would be true but if you have other Trap17 links in that page, try making backlink to Trap17 the first one. When I was registering for GFXTrap.com, I had to try few times until I made sure that www.trap17.com was the first link before www.trap17.com/forums showed up. I haven't had the chance to study the link exchange script but perhaps the crawler sees the first keyword "trap17" and if it's any different, it rejects it.