how do you get texture packs on ur own world??
If the server is running MCGalaxy, you can do /os map texture [url]
Note that you have to use texture packs designed for ClassiCube, you can't just use normal minecraft ones. You can find some from here and some more from here.
How do I download them? NM...
those texturepacks are for not awesome two and will look turbo fucked up on other servers
although if you want those textures mapped to the default block selection try the webclient one