Radiation Safety Officer, wun be a spelled out in the websites. You need to have contacts to know if the position is available. In O&G we tend to help each other or rather help our friends to get jobs. It's a close knit community. For that kind of post, i would suggest joining as a HSE officer / HSE advisor first ( depending on your qualification ) then once slowly branch out to specialise.

Oh and as for Radiation HSE officers, you would need to basically look for NTD companies who do radiography, though not many are around but there might be a chance to get into that position however I highly doubt it. I know a few major players in the NTD industry but i've yet to meet a radiation hse officer.

Did you apply for the processing geophysics post?
What is your background? They tend to look for engineering / physics / mathematics grads. Would really help if you can expose yourself with signal processing, since seismic is all about signals.

CGGVeritas is actually gaining lots of good grounds recently, very strong competition with westerngeco (schlumberger). It's really a good company to work for, somemore based in KLCC. Anyway, to answer your question, why don't you try calling their HRD to enquire about your status? Who knows, last I check with a friend there, more than 200 is applying for a limited number of positions.

Good luck!