any idea how to call actionscript file in xml

hi all
I am Yamama i am new to this site. I will be v thankful if any one solve my problem. i have purchased a flash template from a website now i have to edit its xml file. I needed to add an actionscript file in xml file as to add scroll bar in some of the pages scroll bar script is written in actionscript file and i dnt know how to adjust xml file.