You may as well buckle up now, and start doing your research. You will find on Top Flite's website a manual that you can download in PDF format, if you don't already have it. It will show you what you need for servos, and how to install them and make them work properly. It will make more sense to you when you read it and understand it from your research there, rather than have someone spoonfeed that info to you. Some of what you're asking for depends on exactly how you want to configure it to fly, so that's where the reading comes in to play. More specific questions and recommendations can be answered here, and on other portions of the website. For example:

http://www.rcuniverse.com/forum/forumid_200/tt.htm - for Warbird build and specific questions there

http://www.rcuniverse.com/forum/forumid_180/tt.htm - build and repair techniques

http://www.rcuniverse.com/forum/forumid_373/tt.htm - general information on flying R/C