Installed client software, now I can't launch minecraft

[mo1dy_cheez]

So, I downgraded to 1.0.0, had a fresh, clean minecraft folder, and used the installer without a hitch. I go to log in, it accepts my name, password, and then becomes just a black screen. Has this happened before?

Note: Here's a shot of what my folder looks like at the moment. Not sure if this is what it's supposed to look like, I've got nothing to compare it to.

[kawaiiwolf]

Looks like something isn't loaded or installed correctly. Can you paste your Modloader.txt file that's in your .minecraft folder?

[mo1dy_cheez]

I would, but now all the sudden my minecraft folder isn't showing up in application support. Do you know why that would be?

It's still there, I can view it through the Tekkit installer, but I can't modify it in any way. Nor can I seem to find a modloader document. Is that what's missing? Was that included in the tekkit installer or do I need to get it separately?

[mo1dy_cheez]

Ok, I managed to get access to my minecraft folder again, but I still can't find a modloader.txt file. Do I need to download it separately?

[kawaiiwolf]

It's generated automatically when you run minecraft as long as modloader is installed correctly. If it's not even getting that far, only thing I can think of is that the minecraft.jar still has it's META-INF folder, which it shouldn't.

[mo1dy_cheez]

There's nothing like that in my folder.