Can some one do this...

Can some one do script that allows you buy pet's
Like you can have wolf as your pet but it dosnt take any room in your party???
do you understand?

So basically you want a caterpillar system where a pet follows you, but he's not in your party?

will the pet follow you as well? what can it do?

this can be done using events, but i need answers to the top 2 questions.

He wants a wolf to follow his character but it has no stats, it doesnt go into battle (I think), and something else.

the wolf will be in battle.

Hmm, so like they were in your party, but you cant see their stats and such?
Easiest way I think, is to go get a catipillar system, and make a hero for the wolf and put him in your party, but dont make any items equippable to 'pet' race..

Then it can't do damage...

yes, you can have bare hand damage. Its based on the heroes atk, (which never increases, except by script) or you could use a bare handed script if RMXP wont allow heroes to attack w/o weapons(but im pretty sure they can..)

He want a party member that doens't count as a party member, he never said anything about the map or the caterpillar system... and he also want a shop.

The easiest way to do the shop part would be through an event, not a script.  Just run up a list of choices, you know?  However,it would be a lot nicer with the script (like pretty much everything in RMXP.) And the scripting of the shop shouldn't be too hard.  I could probably do most of it myself, and I'm just starting to understand scripting.