I'm no expert but I'd start at http://www.zvv.ch/zvv/de/home.html
In the left box, type Zurich central and pick it from the drop-down that appears. In the right box, type Zurich Klusplatz and do the same thing. Click verbindung suchen.
When the new window pops up, change the time and date to when you want to travel. Click the plus sign next to "details anzeigen" to see the major stops. Then click the little green plus sign on the left and it expands the view so you can see interim stops.
For example in a few minutes there's tram 3 leaving from Central. It takes 8 minutes, and there are 5 interim stops.
Edit - after doing all that I noticed you can change the language to English.
In the upper left corner click Menu and then EN.