J.S.
The clinging part is a phase. Lasts about a month or two. We just went through this.
The dog thing - Imagine you just landed on Mars. You know nothing, haven't been given so much as a tourist brochure. You hear a loud, menacing noise. Do you smile and try to approach the monster to pet it?
Introduce her to some dogs, but don't throw her to the dogs. What I mean is keep in mind that this is her "Mars". YOU pet the dog for awhile, not 10 seconds. YOU rub the dogs belly for a few minutes. YOU let the dog sniff you and smile and laugh. She'll catch on, she just needs more time (and maybe more examples).