Current program question

I have recently installed Avast Home 4 on a Windows 98SE computer ; I require help please; what is the correct method to update it

What is the up to date version I should have ???

Could you be more specific in your problem please?
e.g. Are you having trouble updating?

Also more information about your system might help us answer (RAM etc.)

Did you have another Antivirus software installed before Avast?

Program version: 4.8.1335
Virus Database:090517-0

-Scott-