I am not sure how to check the direction.
The green lines should be pointing away (outward) from the model, any that point inwards are wrong
for any wrong faces, select the face, from the menu, Mesh>>Normal>>Flip ... it sounds more like a UVMap issue tho, are you sure its unwrapped??
Please note:
Hmmm, double check the UV, I'm sure it must be that
AGK demands that the UV is UVMap 1, cant use secondary UV maps unless using a custom shader