Asdfghjkl, I was gonna post to tell you what to do, I didn't see the second page until I went to reply. xD
Yep, what everyone is saying.
1.) Put the wolf folder onto your C: drive somewhere - doesn't much matter where, as long as you know where the wolf folder is - I recommend just c:/wolf or c:/games/wolf if you plan on getting multiple DOS games.
2.) Open DOSBox and type 'mount c c:/wolf' and hit enter
3.) Type in 'C:' and hit enter
4.) Type in 'wolf' and hit enter
Also, if you play Lion, remember how I said you have to increase the FPS/speed for the loading screens? Like Taryn673's screenshot shows, Ctrl-F11 and ctrl-F12 are what changes it up or down. Just increase it until the screen finishes loading, and then you can turn it back down it you want. (It'll show you how high up you went where it says CPU Speed: 3000 cycles, then you have an idea of how high you need it to be for the future.) I think I usually need it up to about 30,000 cycles.
I had a problem where my / key didn't work - you'll have to rebind your hotkeys with the Ctrl-F1 key if this happens. Note: I've noticed this seems to only happen on laptops due to the way the numpad is used on them. This is the same problem that's in FH, except that you can't rebind keys easily in FH. So, if you have that problem with FH, you'll have it with DOSBox, most likely.
Uhm, that's all I can think of that you might need.