Tweet out

Now Its sending but its not attaching the "status=" part which is the text of the tweet. I am getting an http 400 error so hopefully this is the only reason for that.
Here is the current relevant part of the function ( I made a copy of the NewHttp() function and changed the method to POST)

strx = screen.GetText()
oa = Oauth()
http = NewHttpPost("https://api.twitter.com/1.1/statuses/update.json")   
oa.sign(http,true)
http.PostFromStringWithTimeout( "status="+ strx ,10)

Can anyone confirm the last line is the proper syntax, its not attaching to the message so i suspect its wrong, but its not throwing an error.

Also the function NewHttp() is confusing, in urlutilities.brs its method is GET, but has a parameter "this.PostFromStringWithTimeout" (as above) which still shows as a GET request in the output string (like below). So which is it? I have guessed that only works if you change the method to POST which I have done. Is that right?

Thanks

here is whats being sent(redacted):

Http: # 418 done status: 400 time: 273ms request: POST https://api.twitter.com/1.1/statuses/update.json
  body: oauth_consumer_key=XXX&oauth_nonce=XXX&oauth_signature=XXX&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1383531222&oauth_token=XXX&oauth_version=1.0