Again, with my very basic knowledge, I think this is an AVG problem. not a TM or TM-Img one.

It may be that, because TM-Img converts a photo address to a different BBCode. that AVG thinks that it is a phishing scam. As Ian says, report it as a false positve and they may sort it out.. A quick google suggests it is a failry common issue with AVG.

My Norton is pretty good and has not picked up any issues.

1972 4/4 4 seater, 1981 MGB GT
1984 Harley Davidson Electra Glide, 1990 Kawasaki ZX10