I've received a lot of emails from people asking where to find the yellow keycard on level 1 and how to destroy the cyborg Protoss on level 5. Personally I don't think that these things are too hard to find out. Be that as it may, I've created and uploaded two walkthroughs for people who may have troubles to accomplish these things. You can find the video walkthroughs on YouTube. Here are the links to the videos:
Absence Walkthrough - Level 1
Absence Walkthrough - Level 5
Note: There won't be any other walkthroughs from me, so please don't wait for any new ones and don't ask me to do any other!