Hi could you tell me which version of FMS are you using and what license do you have?
I have the same error in my log too.
2013-04-26 00:43:37 27939 (e)2611378 Application doesn't have permissions for server-side record/append of streams; access denied to stream videoPost. -
I'm using the Adobe Media Server 5 Starter edition.
i am using FMS 4 enterprise edition.