We are using trail version of jomsocial and i have marked custom code on trail version .
now we have bought jomsocial so please told me where to update.
please open this link
retired-people.com/index.php?option=com_community
Jomsocial can be downloaded form the my account link if you have an active subscription. If you have modified any code then you will need to compare / re apply those changes to the new version. Any technical questions can be asked in the support forum