final cut pro 7 sync video and audio

hello to all

the timecode of my video and audio ares't the same (omg why do they do this to me??!! )

which mean I CAN'T use merge clips by time code...

before I use final cut pro x, which is using the wave to sync so there won't be any problem.

so I open a sequence to match the the board sound,

this is the result(haha they don't even end at the same time...)

what I want to ask is how I merge the clips(creat a sync clip for editing directly)???

all I CAN do is link the audio and video , but I want a son clip in browser...

when I USE X, I can sync them by soundwave and have a sync clip direcly...

I know little about 7 can somebody kind enough to answer my question??

any tips/ tutorial will help

thank you very much!!!!

LUCY