1 - when registering at my site there will be many choices mandatory
The registration form can be edited only if you switch to Local Users: http://forum.ucoz.com/forum/7-13887-1
2 - There is no way to activate Member upon registration automatically or through the Director of the site
3 - the inability of me to my membership (member) and not the Director (Other membership)
Could you describe what you mean in more detail?
And if you speak Arabic, then you can ask questions at http://forum.ucoz.ae/
I'm not active on the forum anymore. Please contact other forum staff.