Widget Preferences - URGENT

Hi all,

I've installed the widget engine and i'm using "BI_WIDGET_V2_75" widget. Since i specified an incorrect ABAP host name in widget's preference, i couldn't open the widget. I get an error and couldn't even open the widget. I need to change the ABA host in the widget preference.

I tried reinstalling both the widget and the widget engine, its not opening. Can anyone tell me where are the widget's preferences stored, so that i could modify the ABAP host in it.