Because Unity Launcher and Dash only show application that are in /usr/share/applications/ you can't add or view apps that are installed via Wine.
To add Wine apps to Launcher you need to create new .desktop file in /usr/share/applications/
The easiest way to do this is with Unity Launcher Editor.
Unity Launcher Editor still don't have PPA so you need to get it via BZR
First you need to install bzr
sudo apt-get install bzrthen
bzr branch lp:unity-launcher-editor
if last command don't start Unity Launcher Editor then go to /home/unity-launcher-editor/unitylaunchereditor/ and open main.py
Now in Unity Launcher Editor click Add button and write App name,
In command field write command that will open Wine application,
Click on Icon and select icon for your app (64x64 .png)
Final step is to make new launcher item executable.
/home/.local/share/applicationSearch for your application and rigth click > properties > Permissions
and check Allow executing file as program
If app is not in Launcher you need to logout
For Unity 2D you might need to add manually app to Launcher
You can do this in two ways:
1. Go to /home/.local/share/application and start your app
In Launcher right click on app and check Keep in Launcher
2. Start gconf-editor from terminal, navigate to Desktop > Unity 2D > Launcher
duble-click on favorites > Add
in New list value write : appname + .desktop