Is the server functioning as an LDAP/domain server? If yes, there's probably a decent chance, though you'll have to figure out the specifics on your own. My experience with OS X Server is pretty limited. All I can say is that there is a way to push updates to clients, but it's intended more for updates like you get when you run the software update program on OS X. Whether or not you can repurpose that for your needs I can't say, but it's at least a place to start.
If your server isn't functioning as an LDAP/Windows Domain server, that the laptops will be connecting to, then your best bet would be to update the image and then redo all 600 laptops with the new image. The hard part should already be done, making and testing the image. Now you just have to go back through and reimage a large number of systems. It's not going to be fun, and it will be time consuming, but it's probably the best overall solution.
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Hello All:
What to thank everyone in advance for taking the time to respond to this post:
We just had a 600 laptop image delopoyment of macbook pro's and since we
were rushed to do this in one day.... i forgot to connect them to wireless before
creating an image. (worked from 5am ~ 5 am)
DOES ANYONE KNOW HOW TO create a login script, where to place it,
and how to push out wireless setting so when a user logs in, it would automatically
bind them to a certain wireless?
We want to strictly do this through our Mac os x server snow leopard.
Please help as I am going back this Sunday to resolve this. I will have to
manually open up 600 laptops and add them to the wireless if i don't
find out a solution.

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