I might be wrong, but the promise was for the bill to be up on the website for 48 hours after it was passed before The Supreme One would sign it (except in the case of "emergency" bills). The House and Senate should have had access to the bill long before it was posted on the website.
That having been said, I can almost guarantee that the majority of the members of the House and Senate didn't read all 1100 some odd pages. They only read the ones that pertained to their pet project that was supposed to be in the bill.
Edit: Sorry, I was wrong, according to
http://www.politifact.com/truth-o-me...romise-broken/ the promise was to have it up on the site 5 days before he signed it.