Scripted textures

I don't if this is the right place to post this (maybe a more modeling-oriented forum would yield better answers...) but I'm trying (or rather, will soon be trying) to do some interesting things with scripted textures, and have pretty much no idea how to go about doing it. If you don't know what I mean by scripted textures, the best example is the ammo indicators on the UT weapons (you know, the red text...). The scrolling marque in some UT levels is also a scripted texture, but I'm interested only in scripted textures as skins. What I need to know is:
A. How can I make an actor have a scripted texture on it.
B. Is it possible for a single actor to have more than one scripted texture on it.
If anyone could help me out, I would appreciate it very much... I think I may have seen a tutorial on this somewhere a year or so ago, but I have unfortunately lost the URL if I ever had it.

Eater.

Well, thanks for the link... It will really help me get thruogh the first part, but that still only explains how to implement it in a map... Oh well, I'll figure it out myself I guess. Thanks for that link.

Eater.

Well, I'm pretty sure that the "scripted skin" calls a RenderTexture(ScriptedTexture Tex) function (or something like that) every Tick... But that's the reason I asked about point B - if you have more than one scripted texture on one actor, there is no way to tell which texture "Tex" is, or is there?

Eater.

But isn't MultiSkin used for something else? I know that some functions in the TournamentPlayer class deal with mulitple skins (when assigning the face and body skins), so I guess I could look into that... And I'll check on the MultiSkin thing again, although I doubt that's it. Thanks for the help anyway.

Eater.

Well yeah, I realize all that, but what exactly is the MultiSkin array used for?

Eater.

You're sure about that? Well, OK, I'll experiment with it a little bit when I get to it. Thanks for the help.

Eater.