Normally K-Meleon saves its bookmarks in the configuration folder
of wine --> .wine, inside your home directory.
The path is .wine/drive_c/windows/profiles/yourusername/K-Meleon
An exception is happening, if you have created your profile in
your K-Meleon root folder using profile.ini , or applying
as single user during installation.
Use a version with an URL button or with the special k-meleon.exe
for Linux included, if you cannot use the address bar.
You can find them on this page:
http://kmeleon.sourceforge.net/wiki/UKmeleon
First, third or fifth from the top.
Fred