how do i transfer users from one easysocial site to another.

hi guys
can anybody assist me on how i can transfer users from one easysocial site to another. the first one i had had a problem to do with joomla tables an i have a number of registered users on it.

i have created a new site on the subdomain and i want to transfer all registered users, user profiles, groups, events,photos from the old site. which sql tables should i move and which files and folders should i copy without compromising the new site

regards
goodwin