I don't use this software, but it may act similarly to whai I use. If you have a column of timecode numbers, try clicking on the column name, for instance, "start timecode." Usually on a Mac that will cause the column data to be sorted numerically, alphabetically, etc. Click again and the sort will reverse.
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870
ATTO ExpressSAS R380 RAID Adapter, PDE Enclosure with 8-drive 6TB RAID 5
24" TV-Logic Monitor
Final Cut Studio 2 (up to date)
Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN