Ok folks, i have a pic taken at fairly low resolution (1600x1200) from a holiday that i really would like to have blown up into a large print for a wall hanging - something like 30x20cm or larger if poss.
Looked on some online processing sites and it appears the pic is too low quality to do so, any ideas as to how i can achieve my aim - remember i know nowt about photography and even less about computer techy stuff!

