Re: skmMenu Sub Menu Items Class
In mojoPortal the SiteMenu control is what you have access to in the skin and is a wrapper around skmmenu that handles populating it from the db, you can't work directly with skmmenu without getting into the source code for mojoPortal, specifically in the SiteMenu control.
Currently SiteMenu exposes only some of the features of skmmenu but does not expose all of them, I still have more work to do to expose the rest of them. I will try to get to this sometime soon since you have asked about it and reminded me that I need to do this. Its not that anything is hard coded, its just that not all the features of skmmenu are exposed on SiteMenu.
Thanks for getting this on my radar.