Well, have I got awesome news for you! Here's how to get your Adobe Photoshop/Illustrator registered and not explode in 7 days and you can too:
1. You should get the "Sign in now" page right away after starting your install and putting in your serial number for CS6. Choose sign in later if you haven't installed your CS6 yet.
2. Once you're installed, start up Illustrator and choose the "help" menu up top, then "product registration".
3. It'll bring up the "Sign in Required" page, but that's what we want. You'll see the "Having trouble connecting to the internet?" link now, click it. It should have also opened up the offline activation website at Adobe. Don't close that.
4. You'll now get the "No Internet Connection" page and the option (finally) to do an "Offline Activation". Click that button:
5. Now, you'll see the steps for an offline activation and the button to generate a request code. Click that bad boy!
6. You'll see a new screen with your request code shown (I've blurred mine out). Copy this to your clipboard and have it handy for the Adobe website to follow:
7. Now, at the website for your request code, you'll click the "Generate a Response Code" link right in the middle of that page:
8. It'll prompt you to sign in with your AdobeID next. So, do that:
9. Now, you'll paste the request code you generated and enter your serial number that you probably lost and just spent the last 4 hours looking for, or you're realizing you need that number now and are going to leave this page for tomorrow. At any rate, paste your code and enter your SN, then click "Generate Response Code".
10. If you were successful you'll see this next page showing you the response code for your offline activation. Copy the response code to your clipboard and we're almost done!
12. Now, take the response code you've just copied and paste it into the offline activation window you left open (You did leave that open, right?) and click (finally!) "Activate".
13. Finally! You're activated and CS6 won't asplode your computer! Now go have fun making all those Photoshops of your boss's head onto a donkey.
14. You're done. Get outta here. Close the window already. GAWD.