[Plugin: WP-Piwik] Registration (and login) tracking?

I just can’t figure out what I’m doing wrong. Then again, maybe I’m not: I’m trying to set up a goal for registration on a site with Piwik (and of course the WP-Piwik plugin) and it just ain’t workin’ so I’m wondering… Is support built into WP-Piwik for tracking registrations (and logins or PW resets although I’m not really that hot on that) or should I gently hack it in?

(I suppose I’ll have to do it myself because I can’t find the Piwik tracking code anywhere on the registration / login pages…)