www.freescale.com/FRDM-KL25Z link is now activated
FRDM-KL25Z user manual, Quick Start Package, Sample Code Package, Processor Expert for Microcontroller v10.0, Codewarrior v10.3beta are downloadable following this link
Try the "Jump Start Your Design" with Start Here! Quick Start for the FRDM-KL25Z, Getting started with the FRDM-KL25Z and IAR EWARM, Getting started with the FRDM-KL25Z and KEIL MDK to increase your experience 