cant install wm6 on my 6700

[saint777]

So i downloaded the zip file containing the .exe and it says before starting to set phone into bootloader mode but when i try it either does a soft reset from the soft reset button, or the back goes off from holding the power button, or the recorder comes on from holding that side key down. I know im supose to hold all three together but its not working. can anyone help walk me through the set i really would like this upgrade.