Zone Alarm says I need to update to V8_0_020_000.
When I try I get the following message.

C:users\J&M\AppData\Local\Temp\ rt could not be saved because the source file could not be read. Try again or contact the server administrator

I am using MS Vista fully updated, and connect via a router Zone alarm is

Any ideas please?

Operating System:Windows Vista Home Premium
Software Version:8.0
Product Name:ZoneAlarm Internet Security Suite