passing variables via redirect

Hi Professionals

I have the following piece of code on my Upload page

<td width="33%" align="left"> <?php if ($result==1) header("Location: import1.php?$imagename");  ?></td>

which then goes to import1.php

in my browser address bar it shows http://localhost/import1.php?uploads/ExtTypes Test.csv

In my import1.php file i have the following code which shows nothing?

echo "the filename is " . $imagename;

Alll it shows is "the file name is"

any ideas?

thanks in advance