It's totally down to the van insurers, the pay out won't be a problem at all.
good on you for "sweenying" him though, might have got away otherwise.
The owner/correct user of the van will have a problem, as the insurers are going to try and recover the money from him, just try and ensure the plod prosecute him for allowing a non insured person to drive.
Glad you're all ok, insurance won't be a issue at all.
tabetha
ps more piccies of the girls would help!!