drupal 5, as2 node.save how to set uid and url alias

Hi Everybody!
I'm new to drupal. I would like to make a website with a flash based interview appz. After user click send button I'd like to store the interview text as a node. I used the example "Accessing a service from Flash 8". It works fine.
I have made some changes in the flash code, because I don't want to load the node to the flash but I want to save the flash content to database as node:
var content = new Object();
content.type = "interview";
content.title = "some title";
content.body = "some body text";
var pc:PendingCall = node.save(content);
It works fine, but only when I'm logged in as administrator.

And I need two more things to set:

I need to set the user id (uid)
I tried with adding one more line:
content.uid = "2"; but it doesn't work.
every node that saved from flash has uid=0

the second thing to set is the url alias. I'd like to ganarate a url alias from the user submitted name, and after submitting I'd like to redirect to user to the host/interview/usernamepath page, which contains the interview text.

thanks for help