no, you have to use cwm to install roms, they will normally be in zip form and you will put them onto your sdcard and choose the install update zip from sd card option
to tell if the root installer worked though, you can go into your programs list and see if you have the superuser app installed, might be called SU, but its a black box with a picture of the green android guy, if that is there you are rooted
to check and see if clockworkmod is installed you can just turn your phone off, hold the volume down button, and then press and hold the power button, then dont let go untill the black screen with nothing but the android guy on it goes away, and the recovery screen pops up, it should say clockworkmod 6.0.2.7 at the top and bottom and have a picture of a gear with a hat on