I don't want to pre-empt the AVG Advisor but if you are going to send the file to AVG to check you won't be able to 'rescan' it from the vault.
I believe you will have to remove it from the vault, (restore it), back to the folder location you downloaded it to before running it, then create an email addressed to virus AT AVG . Com (proper address in the guide), and "attach" that file to the email with a short note in the main body of the email where it came from.
Only when that is done can you re-scan it to let AVG return it to the vault.
The section in the guide that you need is probably the one entitled Identity Protection False Positives, and then part A Detection during new installation.
But more about this file. If I am correct you downloaded CNET's Installer file when you attempted to download this Sticky Note software form Download.com. (The web address of that download page will still be required).
CNET started using an Installer File some time ago in an effort to improve security of downloads and when this installer file is run it then connects to the internet to download the software you wanted. However, this installer file often includes an Optional Extra, a toolbar or similar, and it is this that some anti-virus scanners detect as possible malware. It is not malware, but it may include Adware that will track some of your web page visits to offer suggestions to you. Those who don't want this optional extra can "Opt-Out" of it, but I would have wished the choice was the other way round.
About Windows 7's Sticky Notes. It is basic, with few bells and whistles, but I use it all the time for quick notes and reminders. I hope you find it useful.