pclinux 2007 was abandoned in 2009
please try with 2009.2 if you can get the iso or wait some more days and then try with pclinux 2010, it is almost here!
You can still get the 2009 iso here at
http://archives.pclosusers.com/isos/ I would suggest as T6 said above that you wait for the 2010 iso which is being posted to the repositories.