Do you have an administration control panel of some sort that you use to edit the content of your site? Chances are you have a template site...
Do you have to log in to a thirdparty site and use special software to edit your website? Chances are you havea template website...
Did you purchase a template from a designer or from a site like templatemonster.com to which you have added content? Technically speaking you've got a template website...
Another way to check is to look at the source of your page. Usually a template website will allow you to pick a "theme", which make up the colors and decorative images for your site. If you look at the SRC attribute for the images (this is the attribute that tells the browser where to find the image so that it can be displayed) template websites will often have a URL in the SRC attribute that points to a file on the template webhost's company server.
For example:
src="http://images.example.org/style/f1092/hh283/99283HADIIANE938ANJ1QJKH31JLJ45.jpg"
By viewing the source of your website (the one in your signature) I can see that it's a template site. See how the link to your stylesheet has all of the "template" stuff in it?
<LINK href="/TemplateSiteTemplates/Template1005/styles/Style.css" type="text/css" rel="stylesheet">
I can also see that the site was created in VisualStudio (probably, maybe web matrix) and runs on a Windows server.
P.S. Your Meta keywords tag is way too long