the Metallica Blackberry 8800 theme desktop installer (.ZIP)
for the blackberry 8800 OS 4.1 here
for the blackberry 8800 OS 4.2 here
for the blackberry 8800 OS 4.2.1 here
for the blackberry 8800 OS 4.2.2 here
for the blackberry 8800 OS 4.5 here

You can also download this theme over the air using your blackberry by following the next link: download 8800 OS 4.2.1 OTA