I cant connecting my user manager with hotspot 
yep,..!!!
to make understand about how to manage to 'remote' hotspot and users from.. and userman as radius server visit at this link: i have a hotspot how can i marrage hotspot with usermanager? - The User Manager - MikroTik community forum
many friends and me nice with it..
regards
Hasbullah.com
additionaly to Balimore post,
http://wiki.mikrotik.com/wiki/MikroTik_User_Manager