So anyway, after no resopnses on the board I tried a million combinations of validation script until something worked.
Heres what I came up with so someone else doesn't have to go through the monkey business that I had to.
Code:
if (document.getElementById('po42').value == "")
{alert('Please enter the name of the person or company the the software will be registered in.')
document.getElementById('po42').focus()
return false;
}
else {
return true;
}
Just replace po42 with po and the index of your product option.
Replace the alert with whatever you would like to say.