For anything you don't have (containers, curios, gold dust, essence), you can buy from the Craft Supply Merchant in any camp or town or you can buy from the auction house if you are looking for anything specific. I believe everything except essence can drop for scavenging. Just buy the level 1 stuff from the craft supply merchant if you are just leveling Talisman Making.
In scenarios, you will earn Emblems of a certain rank (Recruit, Scout, Soldier, Officer, etc.). You can check the currency tab in your inventory bag to see what you've got. In RvR you will earn Medallions (similar rankings). There will then be merchants for each currency (Emblems vs Medallions) that you can use to buy gear sets and weapons. I don't quite recall what the mechanism is for earning Emblems in Scenarios but I know you get more for wins and completing the Scenario quest for the win.How do I earn medals and so on? I got none in several scenario runs.
One thing that can help is to go into the Enemy add-on settings (looks like a target icon) and then go into Unit Frame settings. You can turn on overhead icons for your group which display their class icon in a green border above their head to make it easier to distinguish you group members. You can also just click on your group members name plate in your group's raid frame.Another issue is that I can not distinct my group members from the other players from my realm in a scenario.
Further more, once you get into RvR with many more players, it is good to use Enemy's built-it Marker function to mark the Warband leader. This will put a big colored arrow above their head. Optionally, you can also install the add-on "Pain the Leader" which will automatically put a large star over the warband leaders head.
I believe you have at least 1 group heal (Blessing of Isha). Not sure if you have others.Edit: Does the AM getting group heals?