Warranty???

 So early this morning, say 1 AM, I shut my Xbox down after a few exciting hours of Halo 3.  As I turn my eyes away from the Xbox, just in my peripheral vision I see a glint of flashing red.  I turned and there it was, staring in my face like twisted smile,  the Red Ring of Death.  Strangely enough I've seen it 2 other times before, but not for long.  Both times were during heavy storms in which our power went out for a brief second or two.  The red lights flashed after the power sparked back on, but disappeared once I turned the Box off and back on.  This time it wouldn't disappear.  I checked it again when I woke up this morning; still there.  Then I check it about a half hour later and it's gone.  Everything starts up normally.  

Now during that half hour I checked the "Registration and Repair" page on Xbox.com.  It claims that my warranty expired sometime in May, one year after I got my Xbox.  This doesn't jive with that 3-year warranty extension that Microsoft extended.  So I'm getting worried that from some technicality I've been screwed out of the warranty extension and when the RROD returns (and it will return.  it never forgets) I'll be screwed even more when I have to buy a new Xbox.  Anyone else notice this on their registration?  Did this just not update after the extension?  Or am I really screwed?