Continuity errors abound in Star Wars. Like bad dialogue, we shouldn't be selective when we pick them out for scrutiny and criticism.
The scene itself is fine in my opinion. Jabba has a townhouse in Mos Eisley, so it's not as though he's trekked all the way from his palace (admittedly, this is an EU factoid and not clear from the film). As for Han being in a rush, yes he is, but when he enters the hangar and sees Jabba and his men there, what's he supposed to do?
Although the scene goes over the same ground, plotwise, it just reinforces the severity of Han's faux pas in dumping the shipment, and how urgently Jabba needs paying off.
Still, there was always something about not seeing Jabba until Return Of The Jedi. Having him just being referred to by name in both of the films gave him a build-up which he didn't fail to live up to in that glorious rescue-of-Han sequence.