Downloads and extracts files for 1.5.2 modpack, but still launches vanilla 1.5.2

[FatsackTony]

Launcher Version: 297

Operating System: windows 7

Java Version: jre7

Antivirus Program:

Description of Problem:

So I am the creator of the Magek Mayhem modpack. Recently some regulars have been alerting me that they cannot access the modpack through the technic launcher. When I tried to download it through the technic launcher myself, it downloads all the files and extracts them correctly (file hierarchy format from 1.5.2 minecraft using 1.5.2 MC launcher) but then it launches vanilla 1.5.2 instead of loading forge and the rest of the mods.

Error Messages:

Error Log: