Running A Basic Script Problem

I started palying this game last saturday and I am interested to know how to run scripts.
This is what I did and did not work:
I created a sphere. I went to the place where you add a script and added this code:

default
{
state_entry()
{
llSay( 0, "Hello, Avatar!";
}

touch_start(integer total_number)
{
llSay( 0, "Touched.";
}
}



I closed out the create/edit window. When I click the sphere nothing happens. Do I need to do anything special for the script to do something? Are there areas in Second life where scripting is not allowed?

Thank you for your help!

Anytus

YES, Land Owners can restrict the ability to run scripts on their land.
Also check that the script running check box is selected.

Thanks a lot!

I was going crazy trying to get the sphere to talk!