Hello all, returning player here... I have never had any issue with AddOn's... after downloading a few via Curse, when I load them nothing come up on screen. Do ALL addon's work here or is it a certain version? If you could let me know what ones work / dont work I would really appreciate it!
you need the ones for 3.3.5a version of the addon. If the addon in question is quite popular and contains many verrsions, its quite possible curse doesnt have the 3.3.5a version anymore. You can check http://wow.curseforge.com/, http://www.wowinterface.com/, and http://www.wowace.com/addons/ for your addons there, as I found they mostly contain most if not all of the versions of the addons I use.
You will see the Game Versions tab. Look for the 3.3.5a or 3.3.5 version or whatever version is closest to 3.3.5a (this version must be at or below 3.3.5a)
Click on the File Name for that specific version to start the download.
Curse, wowinterface etc., you can click the "project site" link on the addon page and sometimes they will have older versions archived. I believe most addons for Lordaerons version were last published before Nov 2010, so that can help narrow your search. But 3.3.5 versions (wow version, not the addon version) are what you are seeking.