Where did you find the url to make a file POST to?...

I'm in the process of replacing the curl post with drupal_http_request in the module because a client's server doesn't use curl. If I post to blip using my account's username and password, using this url to post to http://www.blip.tv/?section=file&cmd=post&skin=api, i keep getting an AUTHENTICATION_REQUIRED response. The blip documetation is pretty sparse... it doesn't even mention the url above as the correct one to post to. So, I'm pulling my hair out because there's no support number for blip :( . If you know of other documentation besides this... http://wiki.blip.tv/index.php/Main_Page , I'd love to hear about it!

Thx,
Paul