You should definately stay. Most of the current activity at the site right now is over at the test site for Version 4, (http://viv.talij.com/) so you may be better off heading there for now, though a few are still active on the live site, which is still V3. (http://gos.talij.com/)
Not sure how far back was the last time you played, but most of the changes so far for V4 are documented under the Countdown to V4 announcements page under the Announcements category. If you weren't around for V3, you may want to check out the Countdown to V3 page as well. There's also the wiki (http://goshelpsite.wikispaces.com/), which has some good info about what to do, but I admit I haven't been the best at keeping the it up to date.
If all else fails, if you have any questions, feel free to drop me a line!