Retro AddOns

I was remembering a couple add-ons I used to use back in the day and was wondering if/where I could request they can be added?

Also, I wondered, could I simply go to Curse Gaming, for example, and download the add-ons in their 3.0 form and install them? or are their coding issues that prevent that?

For example, if I wanted http://www.wowinterface.com/download...Talk.html#info would it be simple enough to go find the 3.0 versions of the addon and dependencies and install them to the Lordaeron client, or do they need to modified in some such way to function here?

I hope my question makes sense...writing from work in between phone calls lol