Yeah my game doesn't work with 1.5 unfortunately. I haven't heard of the 'yum downgrade' command, I'll give that a burl.
Thanks a bunch

---------- Post added at 10:19 AM ---------- Previous post was at 10:04 AM ----------
OK so this page says that the current version of Wine in Fedora is 1.4 -
http://fedoraproject.org/wiki/AndreasBierfert/Wine
But anyway, when I try yum downgrade wine it says:
No Match for available package: wine-1.3.29-1.fc16.i686
I did (admittedly, a very quick) search for 'yum downgrade wine no match' but couldn't find anything. Do I need to set up extra repositories or something?