I am just puzzled, why if I send a post to my blog from a remote computer with the same php scipt it works perfect. It should crash all the time with this function call.
Whether the script works or not will depend on whether the server you are running it from supports xmlrpc_encode_request(). You said earlier:
I can execute the php script from my locate wamp server to my blog with no problems.
This sounds like your local wamp server has or supports xmlrpc_encode_request(), and likely other things in the XML-RPC extension for PHP, while the other servers where your running your scripts do not.
There likely are other alternatives to this function. I recommend consulting the PHP documentation for the function, which I linked to in my previous post.
If you think you should be able to use the XML-RPC extension on your server, you should contact you server administrator or host for support, because this doesn't sound like a WordPress-specific issue.