Extremely annoying paradox

[Saro]

Basically, if I start the Technic Launcher, I get

"Forge Mod Loader has found a problem with your minecraft installation

The mods and versions listed below could not be found

Forge : [7.7.2.682,)

The file 'ForgeModLoader-client-0.log' contains more information"

But as soon as I install that version of forge, everything DIES.

Like, after pressing launch, I get a popup saying

"Your minecraft installation is corrupt, but has been cleaned.

Try to login again.

If that fails, restart the application"

And I've restarted it countless times, with no sign of change whatsoever.

Any ideas?

[Maxis010]

Install forge correctly

If you have no other jar mods in your pack then just rename the zip you download from minecraftforge.net to modpack.jar, this has always worked for me

[Saro]

I've done the renaming thing, now I press "Login" and... Well, good news, and bad news

Good news: It no longer says it's corrupted!

Bad news: It basically hangs there saying "100% no update found," and doesn't go anywhere from there on