Joe's boss, Terry Cavanaugh, wants to sell Joe his business, but Joe says emphatically that he doesn't have any of the money necessary to buy it. However, in Season 4's Drowned World (2008) he was paid 1/4 million for his idea and since then has been working for Cavanaugh as a highly-paid executive and engineer. He would still be unable to pay the two million being asked, but it's not as though he wouldn't have "any of the money".
Joe and his boss have a meeting set because that day is the deadline for Joe to buy the company. When they get to the meeting, Joe's boss had already sold the company. The boss shouldn't have sold the company before the deadline he gave Joe because of the possibility that Joe could have bought it.