Hi,
Google as such does not have much of a problem with handling various file types and extensions. But there are still the three golden googles you need to work on
-Content
-Relevant Link Backs
-Also, since your website is template driven your titles, descriptions etc stay the same throughout. Im not sure if that's a problem, it's a thought since I have been considering OSC for some of my sites but haven't taken the plunge for that specific reason.
I will myself watch this string for suggestions on that.
Maybe you'll find some info here that will help.
http://www.sitepoint.com/article/sea...-friendly-urls
I suggest you try adding a few pages of content relevant to your business.