This kb article provides information on how you can insert a link to a wiki article.
All Agents, End-User
In general, when you want to insert a link:
1. Type the text that the link should have, and select it.
2. Choose Insert | Link
3. Enter the destination that the link should go to.
The wiki is tightly integrated with FogBugz. You can create a link to any FogBugz case simply by typing the case number when you insert a link. This becomes a bidirectional link; the FogBugz case will link back to the wiki article automatically. Likewise, you can link from a case to a wiki page by typing ‘w’ and the article number when editing the case, for example, W123. You can also attach a file to a wiki article and create a link to it in one step by clicking Insert | Attachment.