ID question please!

Sugar- Britches

Pigs foot lovin'- puppy
Barked: Sun Feb 22, '09 2:16pm PST 
Hi! Mine name is Sugah and I would like some help.
I know I'm part chihuahua, but don't know what the rest is. Mom did some research and thinks I maybe one of y'all. Or maybe a Miniature fox Terrier.
What do you think?