exec cURL to pass custom MIME headers

Hi, Normally I wouldn't do this but the cURL list seems to be in severe hibernation, ie. no activity. I'm in a bit of a jam w/ this and so here goes.... How do I get cURL to pass headers properly? It is ignoring my -H headers and sending its own default or whatever set of headers. One example, it submits as x-www-urlencoded-form or whatever but I want it to just send -H "my headers!". Can anyone point me in the right direction? I know I probably just need to change something simple here.. see below: <? $mime_headers="POST /AUTHORIZE HTTP/1.0\nMIME-Version: 1.0\nContent-type: application/X1"; $xml_content="{some XML - use your imagination here}"; exec("/usr/local/bin/curl -m 120 -H \"$mime_headers\" -d \"$xml_content\" $merchant_URL:$merchant_PORT -L", $return_message_array, $return_number); ?> So any ideas!?!??? Also, is cURL abandoned or what? I thought their list would be active to at least some degree. Thanks in advance for any help. Kris