We've been dropping Curator since... June? and I've never won a pair of Wrynn leggings. The only pair to drop was won by a fill in.
Vambraces of Courage are good, but are also the lowest drop rate on the Huntsman's loot table.
Regemming gear might be expensive, but it adds up.
If you post an armory of your tanking setup, it would help people in giving you more focused gear advice. As for what you should be doing, it's already been covered.
PS: Leave 10 rage in your bar for his first hit after Evocate. I kept eating Crushes after WHEEHAPPY5KSHIELDSLAMCRIT time when we were learning Curator. Helps to have your gf healing you and reminding you in real time to keep Shield Block up
"I played hard to avoid mistakes, but now I can play hard to capitalize on opportunities." -Arold, on the 3.0 Protection Warrior.