When my Mc is loading it says: There was a fatal error starting up minecraft&FML

[AshNeedsHelp]

I need help my minecraft wont work when it has forge in it but when i dont have forge it works but when it does this happens it says There was a fatal error starting up minecraft and FML,

minecraft cannot launch in its current configuration Then it has a link for me to open but when i click on it it wont work do u know anything u can do?! PLEASE HELP

[loordgek]

if you ar using 1.5.2 

use the the installer

[AshNeedsHelp]

Where do i put it? because it is a .jar file

[luacs1998]

Anywhere, double click it, and follow instructions.

[AshNeedsHelp]

when i double click it, it works but if i press the button it says u have to load minecraft 1.5.2 manully once

[loordgek]

run minecraft 1.5.2 manully once

[AshNeedsHelp]

I know i have deleted all of my minecrafts except 1 but it wont work do i use client,surver or whatever the other one is?

[loordgek]

post a pic w/ the versions folder