not got a selection of pics but:
Mk2 Ph1 98-00 (Looks the most different from the other phases, is the same body shell but different bonnet, bumpers, interior etc)
Mk2 ph2 2001-2003 (Whole new front end from the ph1, front grille was introduced and new rear bumper as well as new interior. Also new alloys)
Mk2 ph3 2003-2005 (Most like the ph2 but slightly different front bumper and straight accross front grille , colour coded spoiler, digital dials, different seat patterns, matt silver dash inserts + silver gear knob insert and handbrake button. The alloys changed to 15" versions on the ph2 172)
Mk2 campus 2005 - onwards (campus sport models came with colourcoded bump strips and trim, new renault badge on the boot and the campus badge added. The front bumper had been smooted over. Basically an updated ph3 in order to sell the rest of the cars.)