Please tell me what is wrong with this request. I have added the only required property "body" to the POST data, so I'm not sure what the error message is telling me.
Authorization: OAuth realm="
http://api.tumblr.com/v2/blog/topictastic.tumblr.com/post/", oauth_consumer_key="s83rTQBomoPtl66AT0hEScmYM0QYdhlbW0sa5sRIojgeGOcAUr", oauth_token="oI1e4T4l36EsijOBiI8NJNOnnMNFDMyINK1mJjKHOs3OGcUnQg", oauth_nonce="4924334", oauth_timestamp="1344988225", oauth_signature_method="HMAC-SHA1", oauth_version="1.0", oauth_signature="yB20NiQdOvmenkbJOa6nYlCr2As%3D"
Content-Length: 17
Expect: 100-continue
Connection: Keep-Alive
HTTP/1.1 100 Continue
body=TestPosthere
HTTP/1.1 400 Bad Request
Date: Tue, 14 Aug 2012 23:50:25 GMT
Server: Apache
P3P: CP="ALL ADM DEV PSAi COM OUR OTRo STP IND ONL"
Vary: Accept-Encoding
X-Tumblr-Usec: D=377761
Content-Length: 91
Connection: close
Content-Type: application/json
{"meta":{"status":400,"msg":"Bad Request"},"response":{"errors":["Post cannot be empty."]}}