Britcit, I just came across your website during a standard Yahoo search for "Aliens Drop Ship."
I've submitted my own web site twice to Yahoo, and it has never been listed.
I've followed all the rules and tips I've seen posted by webmasters, and done everything but pay for the listing.
Did you pay a fee to get your site listed? If not, how did you get Yahoo to list your site?
Feel free to PM or e-mail me.