[Greasemonkey] Can greasemonkey set user prefs?

[Vikas Pandey]

On 8/26/2006 01:59 PM India Time, _Vikas Pandey_ wrote:

> On 8/26/2006 02:43 AM India Time, _Jeremy Dunck_ wrote:
> 
>> On 8/25/06, Vikas Pandey <vickyvirgo2k at gmail.com> wrote:
>>> Which compiler are you using?
>>>
>>> thanks.
>> In case he doesn't respond, this is the working one last time I checked:
>> http://www.arantius.com/misc/greasemonkey/script-compiler.php
> 
> thanks.
> 
> it is very helpful.
> 

I created an xpi file of one of my script using that site.

However, when I went to load it at
https://addons.mozilla.org/developers/additem.php?type=E

it threw error that "Errors were encountered during install.rdf parsing...
Aborting..."

Then, read at http://developer.mozilla.org/en/docs/Building_an_Extension 
  that developing an extension for firefox requires many more steps, 
more files in .xpi, and more content in those files.

hence, where and how do I use the xpi created by the above compiler?

Is there any any site that would create an xpi file from my script that 
will be directly loadable at mozilla addons for distribution?

thanks.