Should I move on?

As some of you may remember, I asked a question a while back about a guy I met at a friends party and didn’t get a number off.
I am very grateful to all of those who provided me with advice…but for some reason or another I didn’t follow up :(
I recently went out again and other friends who where at the party said they were sure this guy liked me too…so that propmpted me to take the advice on board.
I didn’t get his number, but instead emailed him. He wrote back saying he remembered me although was pretty drunk.

He went on to talk about some other stuff (business related) and didn’t provide any personal contact number, just his business contact.

Am I right to assume that he is not interested. He was kind enough to respond to me, but I feel he is hinting “I ain’t interested” by adding the lines about him being drunk.

What do you suggest I do…tag along….or just be happy for a response and move on?