There's a new version 4.1 of the NOP log parser available on the NOP page, offering a whole slew of fixes for bugs in version 4.0. Its authors call NOP the "ultimate logfile parser and stats generating tool," NOP can crunch the numbers in the game logs from Quake III Arena, Unreal Tournament, and Half-Life (including Counterstrike, TFC & Jailbreak) servers.