SBS and ISA - Clients cant connect !?!

I just installed SBS and ISA server.
I tested the installation by connecting a client computer and everything went just fine, even email worked right.
Then I installed ISA Server.
Now none of my client computers can connect!?!
I can't even connect to the companysite page from the servers console!
I can't connect all my machines to the network because I cant get to the http://servername/connectcomputer page :(

I think its ISA related but I left everything default and it says the HTTP, HTTPS, etc are all ALLOWED from internal to external.

What do I need to do.

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Can you run the Configure Internet and E-Mail Wizard for the server management console again, this should configure ISA server correctly.  You can launch it from the Configure Firewall option on the Internet and e-mail page.

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In order for ISA to be configured properly You must run the ICW "Internet Connection Wizard" From Server management Console Just Like Saineolai suggested.
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