Help Please! I'm Not Being Indexed By Yahoo

For the longest time I've been trying to get indexed by yahoo on one of my sites at euriskoarticles.com

Its a simple article directory that I setup...

I'm not new towards SEO, I know my way around but I'm sure there must be something I could possibly be missing. I've done some directory marketing and article marketing to help build back links.

I've been periodically checking out how many of my pages are being indexed by using a tool at marketleap.com/siteindex/default.htm

If you go to the search engine saturation tab, enter my site vs highprofilearticles.com/ for example, you can see that both sites are about the same thing but the second site has much more pages indexed then my site.

I have setup an account with yahoos webmaster center at siteexplorer.search.yahoo.com and added in my rss feed along with some sitemaps.

If you check out the link popularity tab, it even looks like I have more backlinks then highprofilearticles.com

What is going on here? I'm still learning some of this stuff and I guess I might have missed something?

I would greatly appreciate any help, suggestions or comments!