I'm trying to click form element on msn weather website.i.e. A "go" button next to form field of desired location. The input tag for "go" button hasn't "name" or "id" attribute so Djuggler can't make this click for me.

Please advise

Indeed the Go button on http://weather.msn.com has no name or id.
To refer to an element for a click in the DOM you need a name or id, so that won't work.

However you don't need the Go button in this case.

Please see the attached script on how to use the URL instead.

Note you need the Lite edition or better to use the 'List' action used in the example script.

Tijn