Looks like you'll have better luck at an AMHA lookup.
AMHR - 236078T TRAILSEND FIRE WALKERS POCAHIGHNESS
Sex: MARE Color: BLUE ROAN
Height: Mane & Tail: BLACK
Date Foaled: 4/25/2002 Markings (1):
Date Registered: 8/1/2003 Markings (2):
Current Owner: NANCY OR SARA HARBORTH Markings (3):
Breeder: EDWARD NIX Markings (4):
AMHA: BICKELS FIRE WALKER 31.50"
AMHA: ALLMANDS GREY BEAUTY 34.00"