Installed the latest (0.8.7) version today for a colleague and realised that the installer doesn't (apparently) create any entries in the Uninstall part of the registry and thus doesn't appear in Add/Remove programs. Not sure if this is a "feature", a "known issue" or a "bug"?
It is a bug, thanks for reporting.
I just created bug 236 to keep track of it.
If needed, you can use the uninstaller manually from the program directory.