podcast downloads with juice & W2000 but not with hpodder & Etch

The RSS feed for a podcast is:

http://broadcast.acme.org/podcast/podcast.xml

"podcast.xml" has entries of the form:

The podcast receiver "Juice" running on a W2000 machine is able to
download the podcasts without difficulty.

"hpodder" running on Debian Etch is unable to download these
podcasts. However, hpodder successfully downloads other podcasts.

With "curl" running on Debian etch, the command:

$ curl -v http://broadcast.acme.org/broadcasts/20061103.mp3

results in the following output:

* About to connect() to broadcast.acme.org port 80
* Trying 22.222.22.22... connected
* Connected to broadcast.acme.org (22.222.22.22) port 80
> GET /broadcasts/20061103.mp3 HTTP/1.1
> User-Agent: curl/7.15.5 (i486-pc-linux-gnu) libcurl/7.15.5
OpenSSL/0.9.8c zlib/1.2.3 libidn/0.6.5
> Host: broadcast.acme.org
> Accept: */*
>
< HTTP/1.1 403 Forbidden
< Date: Fri, 01 Dec 2006 11:31:53 GMT
< Server: Apache/1.3.34 (Unix) PHP/4.4.1
< Transfer-Encoding: chunked
< Content-Type: text/html; charset=iso-8859-1

403 Forbidden

Forbidden
You don't have permission to access /broadcasts/20061103.mp3
on this server.

Apache/1.3.34 Server at riven.acme.org Port 80

* Connection #0 to host broadcast.acme.org left intact
* Closing connection #0

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