This assumes you’ve got a GT-I8552, also called a Samsung Galaxy Win or Samsung Galaxy Quattro. The multiple names for this device is ridiculous.
Okay, so installation this time is weird. Follow directions listed here for root and CWM:
I can confirm that Xposed works with the stock ROM. Download it here for cool stuff:
That’s it for this. No official CM support, but there a couple of beta/dev only ROMs where a bunch of stuff don’t work. Some clever people have built their own ROMs for this phone.
By finishing this, you should have a stock, rooted, GApped (my Win didn’t come with GApps, and installing it with APKs didn’t work (unsurprisingly)) Win. For this phone, I recommend SuperSU for your superuser management app.