Help with wordpress and domain mapping

I have had problems with the domain mapping in wordpress trying to get my blog to point to my domain. Can a simplier solution be to forward the domain with masking to my wordpress domain example mysite.blogetery.com? Or will this not work?

Bump for OP and myself as I'm interested.

Did you install an instance of WP on your site at the desired subdomain? You should be able to do this through the cpanel of your hosting company? Unless I don't understand your question - which is totally possible.