This plugin looks to be unsupported. There has been no response from the developer since 7/30/10
I am getting the same problem many others are reporting.
The problem is that the second i activate the plugin my site crashes and all i get is a page of code in it’s place.
Once i delete the Youtube Uploader files my site works fine.
allow_url_fopen = On
cURL support = enabled
cURL Information = libcurl/7.19.5 OpenSSL/1.0.0 zlib/1.2.3 libssh2/1.2.5)