For Mandriva PlayOnLinux is already available in your distribution
look herefor more information
For Fedora you can add a repo, todo this go here and add install the playonlinux-yum package.
For all other information go:
http://mulx.playonlinux.com/rpm
or
http://pol.aplu.fr/rpm
Note that if the link is down (pol.aplu.fr and mulx.playonlinux.com is on the same server) try accessing here: http://f.aplu.fr/rpm. You can get a rpm package, but it's a low link. (but this is the last link is an other explanation)