Deana:
If you haven't started an upgrade to Windows XP SP3 by the time you read this message, please temporarily delay the upgrade.
I looked back at the date of your first post in saint's thread here, and it is dated November 23, 2010. It is therefore impossible that an aborted System Restore performed on November 24 is the cause of the problems with your IE 7 browser and all your other third party software.
I'm certain that renewing your NAV subscription would not cause any of these problems, so my best guess as of today is that many of these problems have to do with the fact that Microsoft stopped supporting XP SP2 back in July of 2010.
Since it's difficult for me to accurately diagnose what's causing all these problems with the information you've provided to date, I would suggest that you get your new Acer netbook up and running first and then take your HP desktop in for service to have your Windows XP and IE browser brought completely up to date (ask the tech to download iTunes 10.1 to your HP desktop as well if you can't get it to download onto your netbook).
If you feel comfortable trying to upgrade to XP SP3 or IE 8 yourself, please feel free to do so.
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MS Windows Vista Home Premium 32-bit SP2 * IE 8 * NIS 2011 v. 18.1.0.37 * NU v. 14.5 * iTunes v. 10.1.0.54
HP Pavilion dv6835ca, Intel Core2Duo CPU T5550 @ 1.83 GHz, 3.0 GB RAM, NVIDIA GeForce 8400 GS
Motorola SM56 Speakerphone Modem