Thought I would post this in case it helps anyone else.
I successfully installed 7.0.483.000 over 7.0.470.000 using the "upgrade" option on the installer, after a slight hiccup.
Before I installed I did the following:1)
Cleaned out temp files and Explorer history files
Defragged the hard disck
Disconnected from the internet
Backed up the ZoneAlarm setings.
Disabled ZoneAlarm from starting at boot up by going into Overview/Preferences tab and deselecting "Load ZoneAlarm Security Suite at startup"6)
Ran installer and selected "upgrade" option
After installation and reboot (as per installer instructions) I found my Notepad very sluggish taking an age to open applications and or open tabs on the ZA window.
I then pressed Ctrl+Shift and at the same time right clicked the Zone Alarm Icon in the tray and left clicked Reset (A tip I learned from installing .470 over .462 when slow PC response seemed a problem experienced by a number of users on the forum - note
this wipes all your custom settings).
This cured the slow response.
I then restored my security settings from
the previously made backup by going into Overview/Preferences tab and selecting Restore.
- a working install of .483, although I must admit I achieved it in a round-about way!
It a shame the installer seems to have a hiccup when selecting "upgrade".
Operating System:Windows XP Home Edition
Product Name:ZoneAlarm Internet Security Suite