I have found that my site is getting accessed by website.com rather than via www.mywebsite.com does jom sef help with this. if it doesnt can i make Ammendments to my htaccess with out upsetting jomsef. I have installed jomsef but not enabled it.

i am using Joomla! 1.5.10 ARTIO JoomSEF v3.3.5 iis isapi rewrite by heliocon