One good way to get gear is to ask for someone that can code a large amount of clothing. Which server are you on? If you're on Syntax I can hook you up. Also maybe try the Marketplace (right-click on a Hardline and select it), while there's not a wide variety of stuff on there, you might come across something you could use.
As for the Anniversary event, yes, it'll be going on until this Thursday. To do the Anniversary mission, go to any of the monuments in the game (Hypercube near Mara C, for example) and talk to the Smith Virologist there. Then you can buy the mission ticket as well as some rewards for killing the Smithlings that will ambush you on the mission. Enjoy!