portal or cms

[.Darkman]

which is better
a portal or a cms ?
i currently use tinyportal.
can i switch over to mambo.
bcoz mambo is attracting me.is it easy to mange.

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my smf is currently at http://gfxindia.com
how to make my mambo homepage at http://gfxindia.com
where should the forum files be moved.
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please help
give me step by step instruction to install my mambo and integrate my smf.