I imagine that the policy has been written to provide that you and your wife's are beneficiaries of each other's claims, but do check the small print and take advice if necessary from a reputable insurance broker.
The same think refers to your pension - if the rights have been assigned to your wife then they should be safe from creditors.
If your wife died and you were to inherit monies these would be treated as a windfall in your IVA.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
To have me propose an IVA for you, please visit:
http://www.melaniegiles.com/ivaEnquiry.asp
See customer feedback at:
http://www.iva.com/iva_companies/IVA_Advice_Bureau.asp