[wp-hackers] Plugins and network activations

[Dino Termini]

Hi all,

I've developed a plugin for Wordpress that needs some extra tables in 
order to work properly. A few users have complained that when they try 
to "network-activate" it, it only works on the main blog.

So I found this discussion about how Wordpress should support these 
activations, but I don't understand how we plugin developers should 
handle the activation process

http://core.trac.wordpress.org/ticket/14170

Can someone please elaborate on it, maybe posting an example or a 
snippet of code?

Thank you!
Dino