Once you get it translated, make an appointment at the thai passport office on floor 4 at central. For translation, I used a company at the side of Big C, pattaya Klang
I had a tm30 lodged about 2 months ago. Recently was away and stayed in Bangkok, then Koh Tao, then Koh Yao Yai. Total travel period of about 2 weeks. Went to immigration yesterday for a residence certificate and they were happy enough with my original TM30. That was at Jomtien, maybe other areas differ
if you ever go to immigration for an extension, the chances are that you need it. Even though its not your responsibility, if it hasnt been done you will be fined 1600฿