I wish mine looked that nice... I have the distinct problem of pets not showing up at all! Also, there's HUGE amounts of spacing between my group windows. For the past two or three revisions this has happened. I used to have them all nice and tight on each other, which is what I like. This, however, is horrible:
Someone had posted above that they had a working version with Party Pets. I'd love to use this unit frames mod, because I love the sleek appearance of it, but without the party pets, it's impossible for me to heal a group properly (well, unless it doesn't have hunters or warlocks in it).