Check the log tab of the bot, you'll see there why it didn't build anything.
Reasons could be for example: Not enough resources, population, queue full, queue disabled
//edit
Version: 2.1.0 Date: 29-08-2011
New features:
-Improved anti-detection.
-Improved unit interface.
-Improved farmer interface.
-Added auto cast militia.
-Added auto cast spells. (barrack/navy buffs)
-Added templates for unit queue.
-Added minimum population check for unit queue.
-Added third mode for building queue.
-Added Max. Reconnect Timer.
-Added current looted amount for farmers.
-Added selection for farmers.
~Uthar