Well, it's pretty hard to tell from that particular dark, low-res photo. It sort of looks like a hypo to me from my monitor, but it is tough to discern. It could very well be a "HET" for the T-plus gene too, and not an actually displaying the T-plus gene itself.
Look at the tail, and if the borders of the red saddles have a sort of strange purple-ish, milky translucence to them, and deep ruby/blood colored eyes, then it is. Otherwise, if it simply has reduced dark pigment to it's pattern, normal black pupils, etc..it is a hypomelanistic boa, or is het for the t-plus gene.
Below is a link to a well-known T-plus line. Note the weird tranluscence around the borders that I mentioned.
Some better quality photos would certainly help make a more definitive ID though.
cheers, ~Doug
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"a snake in the grass is a GOOD thing" 
