Great … You are a good replacement for Voadam.
First, go to the RG and copy paste Miltiades to a new post under your name. If I recall right, there is one post for the character and another one for summoned monsters spells that he placed. You can place both under the same post.
Then, you can go on and read the whole adventure but it will take ages … since the game runs for 5 years, maybe one of the original players (Rhun or stonegod) can update you quickly on what is happening but if you do know the adventures, then you should know that the group found a new temple, lying deep in the mountainous area between the Kron hills and the Lortmils, south of Veluna and Furyondy.
Once you'll get into the character, you can post freely. This game is a slow post game, thought, you guys can talk via RP as much as you want. The party just entered into the new temple without alerting the denizens. Then they massacred some without raising an alarm.