Parental Controls not functional on some software

Question

I just bought the iMac and I am attempting to limit my children's access using parental controls. It was easy to limit their account for the bundled software but the additional software I bought at the Apple Store (some game and educational software) don't seem to be compatible with parental controls. For example, when a use the locate feature to add a program to the application list I receive "XYZ program does not work with the limitations you have selected". Without the capability to add the program title to the allowed list my children can't open the program in their account.
I followed the instructions in http://www.info.apple.com/kbnum/n107672 but I found that the key setting was already in place. Of the software I purchased and have installed - Dora, Adventures in Odyssey, Venture Africa - only Dora seems compatible with Parental Controls. The main difference between Dora and the other titles seems to be that Dora does not need the CD/DVD in the drive to operate.
Does anyone know of a way to use Parental Controls with these 'incompatable' titles? It seem incomprehensible to me I have to open the system security to use some title where others don't require it.

Answer 1

This seems to be on the right track. I added the suggested changes to the plist document and that allows me to add the program to the parental control list under the 'Others' category. However, when I click Ok, then reopen Finder and System the program no longer appears in the list.
Here's the Plist contents. The last two lines is what I added.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>English</string>
<key>CFBundleExecutable</key>
<string>Wildlife Tycoon - Venture Africa</string>
<key>CFBundleGetInfoString</key>
<string>Retail version - January 06</string>
<key>CFBundleIconFile</key>
<string>torqueDemo.icns</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>Wildlife Tycoon - Venture Africa</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>©2004-2006 Pocketwatch Games </string>
<key>CFBundleSignature</key>
<string>GGTe</string>
<key>CFBundleVersion</key>
<string>1.05</string>
<key>CFBundleIdentifier</key>
<string>Wildlife Tycoon</string>
</dict>
</plist>