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in short; its complicated

for ichat im not sure if it can be done at all. but if it can i think it was buggy. dont really remember, i just know i dont use it. go download msn for mac
http://www.microsoft.com/Mac/products/messenger/default.mspx

or a 3rd party like adium

as for mail. might wanna google some tutorials and use this program called 'freepops'

its all not entirely worth the effort though. kinda neat though
 
I don't want to start a new thread so I post it here. How can I install Safari 4 beta so that it doesn't overwrite the Safari 3? On PC I knew how to do it but I'm new to Mac world so little help is appreciate. It's still in beta stage so I don't want to use it as a main browser, but I'd like to get it too. I mean that I'd like to have both, 3 and 4, separately.
 
I don't want to start a new thread so I post it here. How can I install Safari 4 beta so that it doesn't overwrite the Safari 3? On PC I knew how to do it but I'm new to Mac world so little help is appreciate. It's still in beta stage so I don't want to use it as a main browser, but I'd like to get it too. I mean that I'd like to have both, 3 and 4, separately.
I don't think it's possible. Safari 4 does come with an uninstall, though.

Safari 4 is screaming fast. As a longtime Firefox user, I actually switched over.
 
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