Hi Jimmyninja,
An IVA stands for Individual Voluntary Arrangement and it is essentially a formal alternative to bankruptcy.
IVAs are a mechanism wherby a person aims to reach a formal agreement with their creditors to repay a portion of what is owed (typically over a 5 year period) as oppose to petitioning for bankruptcy.
Creditors, in most cases, would much rather see an IVA proposal as oppose to a bankruptcy petition as they are likely to recieve a much greater portion of what is owed.
The IVA Video Information Clips on the Myvesta site may be of further assistance to you.
http://myvesta.org.uk/media/video/iva/