Ivory Angel, I think everyone here was trying to be helpful.
However, I do understand it can be frustrating in general when something that seems trivial to someone else is actually less than clear. Equally, those trying to help can become frustrated when their seemingly clear advice appears not to be followed (or understood). I think there is often a huge leap between those with a modicum of experience in IT, developers etc... and the majority of lay users.
In any event, I share your view that for the majority of users, the process of deploying/undeploying a zimlet is unwieldy (actually until Zimbra Desktop 2 it was much worse!), and having to rely upon a site search and a wiki page doesn't cut it for most people, indeed many users would get lost on the way.
Fortunately, Zimbra Desktop 3/Helix will (hopefully) have a means of searching and installing Zimlets direct via the interface (including being able to choose them from the Zimbra Gallery without having to leave Zimbra webclient/Desktop!
Vote/subscribe here to follow that feature request:
Bug 48853 – Add zimlet add/remove control and gallery integration
If you are using Zimbra Desktop 2 (preferably RC), then to deploy a zimlet:
1. Ensure you are using Zimbra Desktop 2 (preferably Release Candidate) - as suggested by Phoenix.
2. Find and download the zimlet you want form the Zimbra Gallery (at http:/gallery.zimbra.com ) or get it from another source (but be sure of the veracity of the file).
3. Each zimlet is available as a .zip file. Download the zip file to a convenient place on your computer (i.e. your Desktop).
4. Run Zimbra Desktop.
5. Click on the 'Preferences' tab.
6. Click on 'Zimlets' listed under 'All Accounts' in the left-hand panel.
7. Under 'Install a Zimlet' click browse.
8. In the dialogue box that follows, select the .zip file you downloaded.
9. Click 'Upload File'. Zimbra will install and deploy the zimlet. You should receive a 'success' message.
10. Check that the zimlet is 'ticked' in the list (zimlets can be ticked/unticked to turn them off/on (this will not uninstall them).
Good luck!