Hi, How in the world do you install the Redpower plugin on your server? It's not very user-friendly. I apologize if this has been asked before. Thanks.
Are you referring to the RedPower2 mod from http://www.eloraam.com/? If so, it's not a plugin, so cannot be installed as usual. Instead, you can use a special build of CraftBukkit with integrated Forge and ModLoaderMp APIs, along with a special CraftBukkit port of RedPower. Currently, the latest release pr4e is available for 1.2.3. You can find the port and setup instructions on the MC Port Central forums. I use it on my server and it works great, highly recommended.