URLLoader and performance issues

I am building a simple swf that will load in variables from an asp page using a URLloader and URLRequest.

The asp page loads in the current values from a SQL database but these values will change every second.

My swf loops every 6 frames and loads the data.

I was wondering how much load this puts on the server? And when the server is busy might this cause a problem with the variables I am reading in?

Also Newbie question but does AS3 run all actions on frame 1 before going to frame 2 etc?

I dont know if this is the best way but my last variable in the ASP page is called Loaded and I test for it before moving on.

My major concern is the load I am putting on the website but is this small?

In firefox the status box constantly flickers transferring data from … and waiting … but in other browsers you can’t see the activity.

Any help would be greatly appreciated.

Thanks

Steve