I have a 1999 trail 500 and was wonering if a 2002 polaris 440 winshield would fit on it? The 1999 is an evoled chassie.

Also what is the difference in the evolved and the edge besides hoods?

No,

Bulkhead, Tunnel, Belly pan, foot stirrups, Trailing arms, Radius rods, shocks, Steering, rear skid, Gas tank, seat, bumpers, handlebars, gauges, chaincase centers, clutch centers, belt width, and especially windshields. There are more differences in these two than similarities...