What a comedian that last guy was.... I laughed till my appendix burst.
Check why the belt has come off - it may be the case that the bearings have failed and the drum pulley is running off the vertical, throwing the belt off. Check for bearing failure by seeing if there is any vertical movement between the moving stainless drum and the fixed outer drum. There should be no vertical movement between them - if there is any movement between the drums, the bearings have failed and will soon collapse. If theres no problem with the bearings, slacken or remove the motor mounting bolts, which should give enough play to replace the belt. Refit or tighten the bolts and the belt should be correctly tensioned.
Repair and service your own washing machine. Go to www.2ndwave.co.uk/manual.html
dannyboy
March 2009