I saw that Edo linked you to Legendary Items, but you're going to need Legendary Markings as well if you wish to properly see the characters of others. C:
http://www.mediafire.com/file/ixwm166w5vp7ed8/Legendary+Markings+v4.1.zip (http://)
Install this and you won't see random white marshmallows running around anymore!
Glad you got everything figured out! If you're looking for mapped RPs, I'd recommend The Grounds. If you go into that map and sit sort of where the majority of the other players are situated, you should eventually find a mapped group advertising. If you need help finding your way around, I'd be happy to friend you in-game and show you some common / necessary-to-know areas. c: