its always just a weird thing with customs thats why i usually run the curse voice minecraft plugin, it lets you create modpacks really easy with separate instances and disable and add things directly from the pack so you don't have to go though the process of folders and subfiles and all that crap. it probably just conflicted with minecraft comes alive in the end though or it might just be something with ichuns core, glad to see you got your pack working have fun.

Huh it WAS mob amputation i'm not sure why that was messing stuff up but it's fixed now soo wierd cuz it worked before in another one of my modpacks.

if you can disable a mod i would recommend trying it without the mob amputation, from what searching and reading i did about that right now it seems to cause a lot of problems, other than that did it say anything when you where starting it up or did it just pass though?

Here is another crash... :/

Crash: http://pastebin.com/cRYCAiQh

sorry about the mod list im just kinda lazy when it comes to reading crash reports, i can just not be lazy and read it though

what i would recomend is installing this mod
http://www.curse.com/mc-mods/minecraft/ ... ing-screen
it will show you what its loading up upon startup in your modpack and it scans to see if anything is missing or if something is overwritten poorly as sometimes a modpack will load fully to the menu without a mod or incorrectly but when you go to do anything with it, nothing.
it would also help to see what mods your are using and such, with ichun i assume you are using portal gun, make sure that you download the correct version of ichun as the standard download from the site may not be the right one for the mod version, i think he released a beta that doesnt work.

I think it would be more helpful if you went to the support page of the actual modpack.

Okay ignore the other crash report here is the new one.

Crash: http://pastebin.com/T8AWWzfW