Hy
For Fedora Core packages have the extension .rpm. This what you should serch for. There is a site where you can find most new rpms for Fedora, it is
http://yarrow.freshrpms.net/.
Refering to your wine problem:
There is a HowTo you should read at
http://www.winehq.com/site/howto .
Another site you shuld check out is
http://www.winehq.com/site/download here you will find links to Wine prepackeged files. I myself prefer to download the sources and use ./configure
--prefix=/usr --with-x
make
sudo make install
But you can also install it as they recommend in their HowTo. It's just that it installs in the /usr/local path which may cause some problems.
Wine tools to help you install and create config files can be found at
http://franksworld.net/winetools.html
I think they realize everything. I used winesetupk but I see that there isn't any trace of it on the Internet. If you like it I could send it personally to you on e-mail but I think WineTools is a very good replacement for winesetupk.