I played in "against the cult of the reptile god" as an on the fly conversion to 3.5
Spoilers
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As the most experienced player I challenged my self by rolling my pc completely at random and ended up with a NE Gnome Aristocrat. The other players were a Xeph soulknife, a human warlock, and a 1/2 elf NG Cleric.
We needed a little GM hint right before facing the The Big Bad, but otherwise were tearing the module apart.
The first thing we did was bubble into the Inn Front of the evil cult recruiting station, take rooms, ask an impertinant question or two, eat dinner, fail our fort saves and pass out. Well, 3 of us did. The one that didn't had however stated that he was getting drunk, and then got jumped in his room by 5 guys and a cleric.
At this point the gm threw 3/4ths of the module over his shoulder because we had skipped all the investigating, and started reading up on what would happen to us.
We came to, disarmed, and tied up in an underground tunnel somewhere. Or rather, as disarmed as you can make a soulblade and a warlock with out actually removing their arms. The cleric still had all of her spells, and I was, well, still a gnome. One escape artist check later we started systematically tearing the rest of the poor 1st ed module apart with our 3.5 splatbook characters. I was the only one even approaching the expected power level of a level 1 pc.