Configuring Photoshop CS5 to open in 32bit by default for multiple users

Question

I've set up a lab with Photoshop CS5 installed on 60 macs which will be logged on by 1200 domain users and I need Photoshop to open in 32bit mode as default for each user so it will be compatible with our printer. Rather than having to administer PS manually to 32 bit for each user, would I be right in thinking I could create one copy of the Photoshop app set to open in 32bit mode and then copy it to all the other macs to replace the original 64bit configured versions so they would all open in 32bit by default for all users? 
Anyone know if this might work or if there is an alternative way?
Thanks for any advice

Answer 1

I was off the mark with this but found the solution. I was informed the preference file to launch in 32 or 64 bit mode is the com.apple.LaunchServices.plist which resides in the user preferences folder. So by configuring the Photoshop app via 'Get Info' to 32bit and copying this out to another users prefs folder then PS opens in 32 bit for that user as well. To get this to work for all users on login I created an automator workflow and dropped it in the App folder of every mac and this is triggered by running it as a login-in items in the computer group in workgroup Manager.