if you look on aspireoneuser.com then find the section on gettinginto advanced mode
this leaves you will an xfce menu on right click. from there you can get to the pakage manager (i forget what linplus uses, but its based on yum) install oodraw, and you are siling...
adding it to the quick launcher is the hard part, but i cant remember how to do that with linplus as i now have xubuntu on my AAone
on a side note OOdraw is more for making images of the autoshape type,
writer is anolgouss to word in M$office if you want somothing like publisher try scribus