Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
1. please download lastest version of jomsocial at jomsocial.com > my account
2. unzip downloaded file, and you will found iJoomla installer at there.
3. goto joomla backend > extensions > manage. and upload the file