I couldn't find my old files.. but here is how you do it.
Now lets change our first Dtmf tone:
HKEY_CURRENT_USER/Control Panel/Sounds/
then choose your Dtmf number (0-9, also # and *)... Dtmf0, Dtmf1 etc
Select 'Values'
Rename 'Sound' to 'Sound2'(or somethin, doesnt really matter, but better than deleting, just in case you wanna change it back at a later date)
Select Menu>New Value>String
Value name: Sound
Value Data: pathname of the wav(eg, i have installed the sounds onto my storage card in a dir called keypad, so, value data: Storage Cardkeypad1.wav for Dtmf1)
and just repeat for all of the keypad tones ( you can actually speed up the process by copying and pasting the values and just changing the wav number).
source MoDaCo
http://www.modaco.com/content/smartp...gistry-tweaks/