I found a small bug issue at <Subject>
Look at Spinhenge@Home User Stats for x3mEn
Score 1,200
but there are only 2 recent milestones:

Saturday, 23 April 2011 500
Thursday, 21 April 2011 100

Where is 1000 milestone?

And I even know how it happened.
Spinhenge gets 200 credits/WU.
Looks like your script don't generate a new row when Score = Milestone.