Probably a quick and simple way of doing this would be to change your checkbox form element:
<input name="checkbox" type="checkbox" value="<? echo $rows['id']; ?>">
to a hidden element:
<input name="some_id" type="hidden" value="<? echo $rows['id']; ?>">
and insert 2 radio button elements instead:
<input name="status" type="radio" value="1">
<input name="status" type="radio" value="2">
You should be able to pickup the values with a simple if(){}else{} to determine which radio button has been checked.
And just to make things even more fun, pull back the status value (or whatever your column name is) in your query so that the correct radio button is checked when you arrive at the page:
if($row['status'] == 1){
<input name="status" type="radio" value="1" checked=checked>
<input name="status" type="radio" value="2">
}
elseif($row['status'] == 2){
<input name="status" type="radio" value="1">
<input name="status" type="radio" value="2" checked=checked>
}
Hope that helps.