When I was on Napa I was a Commander in GuL (Guardians of the undead lords) and we used to take screenies of all of our kills. My old guildmaster Adam Ant (old school PK) created a screenshot utility called GRABBY, I have been using it since then, it's very easy and very convienant as it takes screen shots for you. Here is the link:
http://www.game-master.net/downloads/grabby30.zip
EXTERNAL LINK:
http://www.game-master.net/