I recently downloaded Morroblivion for the nostalgia. So far, I've got a few hours in. Now, I'm looking to join the Imperial Cult which has always been a lowkey favorite of mine in Morrowind. However, I can't seem to join it. I've talked to all the oracles which may let you join in the different forts, but no one displays the dialogue option "Join the Imperial Cult". Even after bribing them and getting them up to 80 disposition (guess that's about what you can expect from a lvl 1 orc).
Any advice on what to try next? I have run out of own ideas.