[Plugin: Simple Fields] sort using simple_fields

First of all, thanks for your amazing plugin!

Up to now, I was using query_posts using orderby & order to sort my queries. Like:
query_posts('post_type=games&post_status=publish&posts_per_page=8&offset='.$this->params['offset'].'&orderby='.$this->params['orderby'].'&order='.$this->params['order']);

Now, I’d like to be able to sort my games according to simple_fields that I have created for this type of posts.

I read on some blog that I could use meta_value & meta_key. But this doesn’t seem to work.

Last but not least, I read about the simple_fields_query_posts() function but I don’t know how to use it.

What should I do to sort my custom posts using a special custom_field ?

Thanks!

http://ww.wp.xz.cn/extend/plugins/simple-fields/