iFinity

It's hard to say.  First check to see that your 'Use Friendly Url Settings' switch is on in your host settings page.   Do the equivalent pages in your site all show friendly urls?

If that's all OK and it's only your sitemap generator that isn't producing the right urls, just double check the way you're calling the NavigateUrl call.  If you provide the parameters in the wrong way it can skip the generation of a friendly url and just output the url as the old default.aspx?tabid=xx style.  There are a lot of overloads of that call, and you might have to experiment to get it right. 

If you've got access to the source code for the module you're trying to generate Urls for, then copy the call the same way as in the module, and you should get the same results.

The first Url is the output from the standard DNN Friendly Url provider.  The second url looks like it comes from either the iFinity Friendly Url Provider or the Url Master module.   In either case, you're calling the navigateUrl call with /bc/price/cc/ta as the parameters, and that's the expected result.  Obviously this is part of your module.

The menu, however, only generates urls for the base DNN pages, not for any modules on those pages.  That's why the menu will sho /onlineTennisShop.