Hi Rika
Google doesn't care what your page extension is. .PHP is completely valid.
Your site can rank at Google - Google your name and you are #1 (exciting isn't it).
Page Rank is valuable in it's own way but for now just ignore it. Where you appear in search requests is what matters. You need to look at the bigger Organic
SEO picture coupled with the Sales picture and you can win as you are offering a fairly targeted service.
Why not start with these articles on Organic
SEO on my site:
http://www.brmwebconsulting.com/arti...ogle_wants.htm http://www.brmwebconsulting.com/arti...ps_to_rank.htm 