(1.4)(SSP) White Screen on Start Up of Minecraft

I installed Forge for 1.2.5, then installed Optifine for 1.2.5, then NEI and CodeChickenCore for 1.2.5 and all of that worked fine. But when I put ComputerCraft into the Mods folder it gives me a white screen.

I use a bat file to start Minecraft so I can see what the error is in CMD.

At a point it says:

Caused by: java.lang.ClassNotFoundException: forge.IEntityLivingHandler
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
… 8 more

I dont know if that is all that i need to put to show what the problem is but it said caused by so that tells me it might be all i need. Oh and I dont want to take out any mods just to get ComputerCraft working, I want it working along side all the others i have.

Any help would be greatly appreciated.

And if you need more of what the CMD page said than just ask.

Oh and if it isnt a ComputerCraft error than sorry for the trouble but if you can help anyway that would be great.

Update the version of your forge to at least 152 but lower than 172.

Worked like a charm, thank you very much.