change HOMESCREEN background through Winterboard

[6thDAY]

hey guys I was wondering how do I change the homescreen background folder through winterboard....the one that displays when you open a folder..

I have a 3gs 4.3.1..

Is there a folder location that I need to put in my winterboard theme?...example com.apple.springboard??

I want to know if it can be done through winterboard in this firmware, instead of going through the SETTINGS and applying the WALLPAPER???

thanks

[Jahooba]

You have to apply it manually through the Settings->Wallpaper, or photos app. There's no way that I'm aware of to set it through winterboard.