more post form Help

Okay i need to input more than one thing in the form, now if there 
was a submit butten do i have to put that in too? and what is the 
value Enter?

<input type="submit" name="enter" value="Enter">


Also if i had radio buttons like below would i just input the one i 
want checked? and what do i put for the value? what it says there? 
("yes" "no" "auto")
<INPUT TYPE="radio" NAME="frames" VALUE="yes">
<INPUT TYPE="radio" NAME="frames" VALUE="no">
<INPUT TYPE="radio" NAME="frames" VALUE="auto" checked>