The URL you have entered doesn't exist on this server. That file or folder may have been removed, or the name may have been edited. If the latter, check here to get the FISO telecon archive list wherein you may be able to find the current version. Of course, the link you're using may just be wrong.
We've reorganized older (<2013) FISO presentations in our archive into separate folders, so if it is an older presentation that you're looking for, it probably IS here. You just have to go look up the new address. That's easy to do. If you are coming from some external site, look to see what FISO filename that site is trying to point you at. There is a date on that filename.
For 2007-2009 presentations, go to http://spirit.as.utexas.edu/~fiso/archivelist07-09.htm
For 2010-2012 presentations, go to http://spirit.as.utexas.edu/~fiso/archivelist10-12.htm
In those archive lists, you'll find the older FISO presentation you're looking for. See, that wasn't hard, was it?