Post vars and Array Together

Iam having this problem andi ill try to explain it the best i can.

$query = mysql_query("SELECT * FROM $db[users_home_options] WHERE option_id = '$id'",$db[link]);

$image = mysql_fetch_array($query);

<form method="post" enctype="multipart/form-data" action="" >
  Select a Image Slot:
  <select name="slot">
    <option value="image1" selected="selected">Slot 1</option>
    <option value="image2">Slot 2</option>
    <option value="image3">Slot 3</option>
    <option value="image4">Slot 4</option>
    <option value="image5">Slot 5</option>
  </select>
  <strong>Please Upload an Image of the Property</strong> <br />
  Image of Property:
  <input type="file" name="userfile">
  <br />
  <input type="submit" name="Submit" value="Confirm &amp; Save">
</form>


$slot=$_POST[slot];

$filepath = "img/".$image[$slot];
	
	if (! unlink ($filepath)) {
   echo ("Couldn't delete file");
} else {
    echo ("Removed $filepath");
}

Code (markup):

theres what i have so far, not to hard to follow, but i can't get the $image[$slot] to display, it won't retrieve the data, what am i doing wrong, i have tested $image[$slot] with other variables and it works.

I left out alot of the code because it would seem alittle confusing on here. any help would be great thanks.

 

$slot=$_POST['slot'];

 

ya that did it, thanks