i just tried that myself to try to help you .. in poser 8 and i found that if i highlight the balloon arm and hand and then go to properties when you double click on it, makes a menu pop up ..., unclick visible and it goes away .. but leaves her arm somewhat intact - her hands look funny ... i'm still looking to find a way to not have ot do this ....

also found that her head is just too big for her body .... not sure why .... yet.