Installing with Group Policy can be tricky. Especially since the AC installer is an installer laced with 7 other installers.

You have the Prerequisites:
Quote
Directory of E:\Amazing Charts\ACPrerequisites

06/18/2012 06:18 PM <DIR> .
06/18/2012 06:18 PM <DIR> ..
03/22/2012 08:14 AM 2,357,760 BonjourSetup.msi
03/22/2012 08:14 AM 555,008 CassiniExplorerSetup.msi
03/22/2012 08:14 AM 445,952 CassiniServer2Setup.msi
03/22/2012 08:15 AM 74,619,392 CRRuntime_32bit_13_0_1.msi
03/22/2012 08:14 AM 2,959,376 dotNetFx35setup.exe
03/22/2012 08:16 AM 57,393,504 SQLEXPR.EXE
03/22/2012 08:15 AM 2,585,872 WindowsInstaller-KB893803-v2-x86.exe
7 File(s) 140,916,864 bytes
2 Dir(s) 535,981,178,880 bytes free

You would want to make sure these are installed first. As you can see they haven't changed since March 2012 even in the latest version. You can skip over the SQLExpr for sure since that's SQL Express. The rest you may or may not need. I think the only you will need is Crystal Reports, but your choice. If you've installed V6 recently, all of these will already be installed. You would need to put these in a script as a part of your GPO. All of them can be installed silently. If you're just upgrading, you don't need to worry about this.

The main thing is the MSI installer which has Amazing Charts. I couldn't get it to work with an administrative install. But I only tried for a few minutes. I found it much easier to have it silently installed as with everything else. A simple batch file could do all of these in one step. Pretty useful if you're setting up an entire office for the first time too. I usually lace Amazing Charts with Windows 7/XP.

Using the script, you would want to use Flags so the install would stop repeating. I.e. place a flag in the Windows folder or something (a place where people won't be fishing/deleting), then check to see if it exists. If yes, go to end. If not, proceed with installation. That's the same way I installed Office 2010 on all of my 10 computers. (And removed OpenOffice as well).