when the main page of La Prensa (www.laprensa.com.bo) does not work you can hit the archives by going to an article published here in the bolivia pages, click on the original address [e.g.: http://166.114.28.115/20031019/default.htm] which will open la prensa and you just have to change date date in the link address - in our example it's http://166.114.28.115/20031019/... which indicates the October 19th 2003. To find the edition of September 22nd 2003 for example you write /20030922/ in this line.
p.s.: this does not function for the todays edition, but for all aditions until yesterday.