Introducing older dog to new home

Hello all.
I'm looking for advice about introducing an older dog (7yr old Springer Spanial)to our home.
She (Molly) has been to the house to visit us. She is coming from a home environment as well.
We also have a cat (Grace) which is use to other pets coming to "visit".
Any advice would be great. I thank you all.

Since Molly has already been to your house, has she seen Grace yet?

If you need help with dog/cat relationships, this article has some good tips: http://www.labadoption.org/linkpages/DogBehave/Articles/Cats.pdf

Yes Molly has seen Grace and showed no intrest at all. As well Molly has been smelling Grace's blankes and bedding and just moved on.

Thank you for the link at least I know I'm on the right track.