when i load it up its says somting like this (below)

[jarrettchuck4]

Title: when i load it up its says somting like this (below)

Version: 3.1.3

OS: windows vista

Java Version: sorry idk

Description of Problem:

when i launch to go play tekkit clasic or all the others it just says it launching and when its about to launch it says this (in error messages)

Error Messages:

legacywrapper/Launch : Unsupported major.minor version 51.0

Error Log:

[jarrettchuck4]

please help me

[WithCatastrophe]

I have the same problem.

[immibis]

Get Java 7.