Any scripts or wow bots.. that can be adjusted for p. servers? Specially wow tbc 2.4.3 servers?
Anything simple would do the job..
Or a little guide how to do something like that..

Needs to press 4-5 skills (dots on my warlock) and watch.. (pet will tank it) and to loot ofc.. but there is a autoloot option in wow..

http://alphawow.net/

Im using wow+tbc enUS v.2.4.3

World of Warcraft at its best! 2.4.3!
I came from this P.server, recently quit because my friends all moved to Retail >.<
But if you are looking for a Blizzlike BC server with a relatively high population check out:

http://www.tru-wow.com/index.php

You know... to be honest you can level a whole lot faster doing quests then by grinding.
And even still it's not hard at all in WoW...

Since it is a P.Server its pretty free rain in what you can do most of the time. Maybe not hack wise, but there is less to worry about as far as external programs go. I think it would be better to learn to create your own bot, but that's just me.

It can be used for grinding? Not only to gain experience.

Well I do suppose that is true...

2.4.3 was notorious for Reputation Grinds, so much that your brain could melt >.<