can any1 help me fit a fan belt to a 2003 octivia , step by stem what to do

There's a Mr Haynes who may be able to help.

Seriously, have you ever changed a cambelt before? Even if you have, do you fancy trying to sort out supporting the engine, since you need to remove a mount to fit the new belt.

Finally, if you're asking for assistence, knowing where you are would help!