all it does is that it Justs load up mods so like a toy mod You have to have a ModloaredMp
No
It allows you to add mods that require ModLoader to your Minecraft
Yes, to install it you will need modloader, and modloaderMP
Your best bet would be to search for that on Youtube, or read the directions from the mod creator. Installing mods on Minecraft is a bit tricky. There's a couple different ways to do, and it might require another mod for it to work. So try to find some directions, or search it on Youtube. Good luck! :) ...sSsss
It depends what mods and where you get them. It might be a fake or you might have to press buttons to activate it or something You should go to the site(s) that you downloaded the mods and make sure that you have the correct version of the mod and that there are no conflicts with other mods you are running.