Simply extract the contents of the rar file to your unpacked flatout2 folder

FLATOUT 2 SKINNING AIDS

PROGRAM	DOWNLOAD
Lentus Template in PSD format with Damage Layer	Download
Nevada Template in PSD format with Damage Layer	Download
Speedshifter Template in PSD format with Damage Layer	Download
Daytana Template in PSD format with Damage Layer	Download
Blaster Template in PSD format with Metalflake Paint Layer and Damage Layer	Download
Roamer Template in PSD format with Damage Layer	Download
DXTBMP (Use to convert DDS files to TGA and TGA to DDS)	Download
FO2 Z-Mod Scenes (all 45 Default FO2 Vehicles)	Download
Paint Shop Pro 4.12 (Use to paint your skins-this is the easiest version of PSP to learn to paint with, it's the one I use)	Download

MISC. FLATOUT 2 STUFF

PROGRAM	DOWNLOAD
Eagles Tunes (Replaces default songs with tunes by the Eagles) ('Take it to the Limit' and 'Life in the Fast Lane' to name a few) (Extract to your flatout2/data/ folder)	Download