Modifications on SocialEngine website

I have a socialengine website for alumni of a college. I want some small changes to improve the user experience. 1) There is a bug that is not allowing the session data to be transferred between pages. Its not allowing the user to complete signup. 2) There is a bug which is not allowing the Member Profile to be visible on the profile page. 3) In the "member browse" page, I want some groups to be created. For example "MBA Class of 2017" will be a group based on profile parameters - "Course = MBA" and "Class of = 2017". These groups will further link to the next page where list of students will be shown from "MBA Class of 2017". 4) I want to upload the new members from an XLS. The fields of xls will pre-fill the data for the users. Some of the fields (2-3 fields) will be non-editable for the users. Will share the format of XLS with you. Will share the details including XLS format and rough wireframe for member profile page once I award the project.