Hi buzn,
Your best bet is to get your ISP to install the URI::Escape Perl package.
Barring that, you can find and delete the following lines in album.pl:
use URI::Escape;
# Replace any unsafe chars with their web versions
$input=uri_escape($input);
That'll mean that album names with characters like & in them won't work for you, unfortunately, but normal album names will be fine.
Cheers