Flashing software for SAMSUNG

[M.E.H.Z.E.B]

Hey, I'm in dire need of some assistance. The operating system of my phone is messed up, and I need to flash the phone immediately with a new firmware, but I can't seem to find any firmware flashing softwares. The phone is a Samsung SGH-E715.

Can someone give me a downloadable link to a flashing software?

 

[M.E.H.Z.E.B]

Come on... is there no one who can help me?