Thomson began his career with a short spell at English football league side Shrewsbury Town.
In 1991, he headed north to play for Brechin City before moving to Aberdeen where he spent five seasons.
After falling out of favour with 'The Dons', he moved to Fife side Raith Rovers.
It was here he was noticed by former Dunfermline Athletic boss Bert Paton and brought to East End Park.
[1] On 8 August 2007 Thomson had his testimonial against a star-studded Manchester United XI team which featured players such as Ryan Giggs, Wayne Rooney, Mikaël Silvestre, Paul Scholes and new signing Owen Hargreaves.