No a Mcpatcher is not free ,because like any other McDonald food it cost different amounts of money.
MCPatcher and MCLauncher are not compatible because MCPatcher modifies game files and textures, which can conflict with the way MCLauncher operates. MCLauncher is designed to manage and launch different versions of Minecraft without altering the original game files, leading to issues when trying to apply MCPatcher's changes. Additionally, MCPatcher's modifications may not be recognized or utilized by MCLauncher, resulting in a failure to apply the desired enhancements.
Because MCPAtcher is used for texture packs, what you want is Modloader or another program.
For HD texture packs (over 16x16 in resolution), you have to use either MCPatcher or OptiFine in order for the textures to work and animate correctly.
Mo'Creatures don't need McPatcher, but Minecraft HD does. McPatcher is actually easier to install mods and HD texture packs so "yes" to your question.
Use MCPatcher
Yes, but you would need MCpatcher to do so.
It might matter what platform you are running on. Each platform uses a different download.
Its a fluid block. you need mcpatcher to change water or lava.
On mac, download the .zip then put it in your texture pack folder. (Install mcpatcher if needed)
Optifine is another but not too many texture packs and mods are compatible with it. It just depends on what you use.
You don't need a texture pack to have better grass. You can download McPatcher at minecraftdl.com
"MCPatcher" is one that will install some of them. There is no one installer that will install all of them whether they be for Windows or Mac.