The tree that I am a member of was imported from Dynastree when My Heritage aquired Dynastree last year. In Dynastree, I was the owner of the profiles of the people that I added into the tree that I was a member of. I was not the owner of the tree itself. All of that ownership information on specific individuals within the tree seems to have been lost when Dynastree was imported into My Heritage. When anyone in My Heritage does a search and finds people that I originally entered, they can no longer contact me because someone else shows up as the Submitter.
Is there anyway to correct this situation and change who the true submitter is?
Verwandt/Dynastree had a way to show the ownership of profiles on the family tree. MyHeritage's system handles ownership if whole trees, but doesn't have a way to show ownership of individual profiles at this point in time. (It's something we might add in the future).
This is the reason you see the Site Managers name as being the submitter of the people you added to the tree. If you are a Site Manager of your family site in addition to the main Site Manager, then you can download a copy of the tree and create a site of your own. If you are a member and would like to create your own site and tree, just ask the Site Manager of your site for a GEDCOM copy of the tree.
Exporting GEDCOMs of the tree is done on the Family Tree > ManageTrees page.