If your RSM asked you to stand in his stead, he should be giving you the joining instructions, itinerary, and relevent points he wishes you to bring up at the round table discussions. The conference is based on interaction, amongst the attendees, in order to solve problems as perceived by the Corps. It is far from a attend and "listen to lectures format". Your participation and input could feasibly have impact on Corps policy for years to come. Make sure you're prepared to site the problems, and give solutions, relevent to the Corps and your Regiment. It is also packed with the high priced help, dress and deportment should be accordingly. There is also a dinner that will likely require your mess kit. If you can't lay your hands on the instructions, PM me tomorrow, and I'll try get you a copy, be forwarned though, I'm on leave at the moment.