grid market (options of theme) : Setup your theme options - No works

Hello, great theme but i can do to work it totaly well or i don´t understand some things about it, please help.

I work with WPMU 3.1.3 and BP

On Options of theme / Seput your theme i cn save the changes on the values "Type of header" and "Show shop picker?", Then i can´t change de header or text here.

And i have a 2º problem with the marketplace plugin, on config i activate (yes) "Enable Global shopping car" oiptions, and the producto on carrier is diferente for any site.

Thanks you- ¿Any idea ?