As far as I can recall the rules were 95% identical to those in the LRB:
nothing has been changed concerning the game-mechanics and the penalty rolls of the secret weapons. The same rules for bringing them on the pitch, using etc...
Only difference is that you may equip one player (goblins=2) of your choice with a secret weapon according to a table which tells you which race can use what weapons and their purchase price. Furthermore after getting sent off the pitch for using secret weapons the opposing coach rolls a D6, on a 4+ the weapon has been confiscated and has to be removed from the team roster. I do not know the prices bc I'm at work but they are different to those found at Galaks site.
Neither I do not know if they will keep that prices after the next BBRC. Anyway you should check out the BB Annual 2003 which has all the good stuff from the mags (and it even has the rules corrected/balanced) and supposedely SW-rules, too.