drive dissappeared !!!

i tried to merge between two drives c: and f: with partition magic

and after rebooting the only drive i had was my c: with out the space of f: or the data

please help i lost all my stuff and partion magic was on f: too

please please help

thanks to anyone who may help me wit this

partition type : of 9hex)extendedx
serial number : none
first physical sector : 40,965,750 ( cyl 2,550 , hd 0 , sect 1 )
second physical sector : 78,140,159 ( cyl 4,863 , hd 254 , sect 63 )
total physical sector : 37,174,470 ( 18,151.6 mb)
physical geometry : 4,864 cyl 255 hd 63 sect

hope this information can be helpful and if any of this means my data isnt lost

thanks again to anyone that will be able to help

not sure if this is what you need ,but try a software program called File Scavenger you may not get every thing back.
do not write to the hard drive you may have to get a cd from co.
load from bootable disc