[Plone-UI] XML and plone...how OH my god HOW?????

[Lucas Vital]

hello friends...my name is Lucas Gabriel, I'm from Brazil and I am
using plonetarium to manage a goverment instituion's portal, please
visit so you can understand my situation:

http://www.kyatera.fapesp.br/portal_en

My problem is that...well, the thing is: I made a lil box in flash to
make the portal's e-news...and its ok, BUT every month I gotta change
the content because every month the news are updated...soooo, in order
to make my life easier I used XML so the flash would load the xml into
the dinamic text boxes sooo all I would have to do is update the text
off the .xml file...HOWEVER in plone..it did not quite work that
way....i think that's the point off my message:

how to I make a .xml file in plone??? 

p.s: to make the .swf file i made a new image...in the short name i
put NAME.swf and then loaded the .swf... I tried to do the same scheme
with the .xml...i made a new document and put in the short name
NAME.xml and then loaded the xml file...but that time it did not
work...what shall I do???????????????????????????????