Armor Leather

How do you switch your Guardian armor permanently on AQ?

I have the Guardian Leather armor and I want the Guardian Plate armor.
Does anybody know how I can get the Guardian Plate Armor permanently?

it is the same problem i am experiencing in AQ, i have guardian leather, but when i go to the tower, and change the leather to plate, and click on save log in slots, NOTHING HAPPENED!
when i do this, i was logging out and re-log in again.but the same leather appears to me…..

4of4 – LTLG Jan2010 Meeting – Leather Armor Presentation