have a look at this gallery and you may find the shots of the bridge you are looking for, feel free to use them unless it's a commercial venture, but let know what you are using them for anyway
Maleme Galleryi do have some others that i'll upload later
a street map of Maleme? that would be pretty thin, there's the one main road running thru the town and a few side roads off it
courtesy of the good people at g00glemaps you can get a very good idea of the place
the main road comes out of the town and takes a sharp left by the airfield then a sharp right over the (new) tavronitis bridge, the old bridge is visible on the screenshot
there's very little left that would indicate there was a battle there, don't forget it was a working army base for a long long time, so they are not going to be leaving battlefield scrap around. Apart from the bullet holes in the bridge supports, i can only think of the remains of some pill boxes on the beaches (but that was from long after the battle) i believe that the rear doors of one of Roy Farrans tanks are now used as a gate in Galatas but i've never seen them