No -- you still have to make the agreed number of payments -- it will mean that creditors will get more of the debt repaid. During an IVA you actually still owe the full original debt, plus fees and whatever isn't paid back at the end is written off then.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk