Single .css file and single .js file: is possible?

Hi to all,

moving to D7 I loose possibility to use CSS Gzip + JavaScript Aggregator (two old module for D6).

I'm trying this module but I can't reach the same result, in particular for:

possibility to gather together all .css in a single file and all .js in a single file.

My target is to have only one .css and .js file for page.

Any idea about?

Thanks!