Everyone,
While assembling our IR beacons we discovered that the "First Infrared Beacon" assembly sheet that was included in the kit is incorrect. The connections to pins 2 and 3 of the FET are reversed. FIRST has been notified, and I hope they'll release updated directions to address this. In the meantime, if you know your way around electronics you should be able to take care of this yourself (search for IRL3103 on Google if you'd like to look at the datasheet for the FET included with the kit). If you don't know exactly how to modify the circuit to be correct, I'd recommend that you just wait to assemble it until new directions are released.
For those interested, you can see where the error is by looking at the sheet included in the kit and examining the schematic that represents the internal "guts" of the FET and compare it to the schematic right at the top of the datasheet for the FET. You'll notice that the FIRST version has pin 3 connected to the "D" (for Drain) line of the FET, but if you look at the "Lead Assignments" on page 8 of that same datasheet that Drain is really pin 2.
P.S. Thanks to Kevin Watson for confirming this to make sure I wasn't making a fool of myself
We draw the line when our students are more affectionate towards the tools rather than eachother. - ksafin [more] 
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