(06 Apr 2014, 3:03 pm)AIG20 wrote I've tried "Resending Activation Code" but then another error message appears, which says that "all registrations must be approved by an administrator"; and viewing the forum in a different web browser does not work either, therefore there must be something wrong with my account.

Your account is definitely fully verified as I did it myself earlier today. I really can't explain why you can't view attachments because you are in the same user group as the likes of Richard Smiles, Andreos, Michael etc.