All mods that dont add items/blocks to the game, or spawn items (cheat in anyway) will work
The Server has to install the mods Not You.
No, it is not. However, it will probably not work on multiplayer servers unless this mutant mod you are talking about is a client-side mod, which is like a hack client, and would not be allowed on most multiplayer servers. If you are talking about mutant mods as "illegal by Mojang", then no.
search minecraftsp in google and download it its free minecraft but some multiplayer servers dont work
That depends. Many servers have their own ip address. Some servers work on hamachi, which has a totally different type of ip address. Each Minecraft server ip is different, but you can find different servers on any website or make your own with port forwarding or hamachi. For general multiplayer servers just type in 'Minecraft Multiplayer servers' and you should come up with many websites with tons of good servers to try out! Happy Playing! ;)
planetminecraft.com
Minecraft 1.4.6 mods will work with 1.4.7 sense they are both a 1.4.
no mods dont work
No
No your have to wait for the mods to update which may take some time.
This is a question to ask on the My Minecraft Mods forum topic. It may not be compatible with a Mac yet.
They don't.
only minecraft classic multiplayer is free, beta mp is for premium only a.k.a buy the game.