If you purchased through Protexis, your old code won't work any longer. In that case, send your proof of purchase through to Degica (use the Support form on the main store page) and they will issue you a new code for the Degica version.
Don't you just hate it when you get a high level armor only for it to look like a metal plated bikini on your female character?? Seriously. How can that protect you??? Enemies can hit the squishy parts!