Honestly dont think there is many... I have a couple on my site but they arent really tutorials instead they are more of helpful tips. Such as not using cgs subtract and a quick example of a work around.
You may find a few on the resource page. Also check the download page... Links at the top and bottom of this page.If not theres a ton of written tutorials on both sites as well as on the magazine link(Aums) and .
grimbers site You can try to use the search feature here but as I said I dont think their are that many available.