my tekkit classic doesnt load :(

[arsehead80]

every time i want to let my tc load it says "could not create the java virtual machine, program will exit." its really annoying me and i need some help please :(

[JamiePhonic]

you must have 64 bit java installed: http://javadl.sun.com/webapps/download/AutoDL?BundleId=81821