1. To post links you must reach "Member Level 1" which you receive once you get to 10 posts, until then you can space out the links and they will work fine(such as instead of "MPGH.net" put "Mpgh(.)net".
More information about that is located HERE.
2. After a 24 hour time frame you must either message a staff member of that section or report your post(much easier) to request any changes you want made to the thread