This adventure was included in patch 1.5. Although we didn't stop polishing this up. Here you can download the most recent version with some bonus content.
Windows XP: copy m1_ifrit.adv to C:\Documents and Settings\All Users\Documents\The Witcher
Windows Vista/7: copy m1_ifrit.adv to C:\Users\Public\Documents\The Witcher
2. Check if older version is present
If you patched the game to version 1.5, you'll find file 'wesele.adv' in folder pointed above. It's older version of adventure delivered with patch 1.5 - remove it.
3. Check Extras
Check additional folders for extra stuff:
- audio piece in MP3 format
- walkthroughs in PDF