I would not narrow down your study of rhythm guitar playing by simply learning that album, or any album honestly. If you are studying with someone, have them bring to the table a few rock songs that feature some great rhythm guitar playing and work to get that under your fingers. If you like Slash, work with that but don't pin yourself to just that. There is a TON of great guitar playing out there especially in rhythm that you can learn from and work to develop your OWN sound.

The honest truth is that you get the greatest experience and skills by playing with others. You will learn how to suite different musical situations and learn to listen to other people play. Simply learning songs is beneficial, but after you get a few of those things under your belt go out and meet some other players at your level or above. Also, perhaps take your skills and teach them to someone else whom wants to learn as well.

Working with a metronome is another great way to hone your rhythm chops. I am assuming you may already have worked with one playing scales, but change your routine to playing different chords with new rhythms. Have your teacher give you some chord progressions and different rhythms from songs that you enjoy.

These are just a few tips. Again, nothing replaces playing with others. Feel free to post any more questions.