He mainly concentrated on coaching duties, though managed to play a few games when their first choice goalie was injured and the transfer window was closed.
Fridge played with Saints sometime in the early 1990s, having previously played for Chelsea. He went on to play for a few other clubs, such as Inverness Caley Thistle and Ross County.
Mirren Mad would like to wish him all the best as he takes his managerial position, and hope he can ing glory to Nairn as it's a great place :-)