Images are a no show

[PTGigi]

*tries image*

Hm that's strange it's not working D: I have no idea why it's doing that.

Also I just tried that link in my address bar and this came up for the siggy.php?id=5:

<br />
<b>Warning</b>:  readfile(http://www.kawaiipetshop.x10.mx/picuploads/gif/0647ba628db6e5b6925780fb60606a5a.gif) [<a href='function.readfile'>function.readfile</a>]: failed to open stream: HTTP request failed! HTTP/1.1 500 Internal Server Error
 in <b>/home/roconza/public_html/siggy.php</b> on line <b>220</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/roconza/public_html/siggy.php:220) in <b>/home/roconza/public_html/siggy.php</b> on line <b>225</b><br />
Readfile appears to be disabled on your host.

EDIT; Double ninja'd D: