Dear Heather,
I saw your site. It is a nice look and fairly simple for the purpose. I like that. There is no reason why anyone can not understand about the theme of the site. It is well written and good looking.
I think your problem here is conversion. I could be bacause of two reason
1. Wrong visitor targetted.
2. Very competitive market
It is obvious that you are working in a very competitive market where biggies like monster.com and jobsahead.com are already taking there hold.
I would like to suggest you one word for that competition. Try to Focus your website on industry. Right now you are targetting anyone from any industry from any experienec background etc. I do not think with small business that is possible. Untill you do have a bottomless pocket.
Try the Focus on any single niche of the resume writing. I hope you will get what you want.
Arvind Kumar