Then, I asked how to post a kill to BC that wasn't showing and no one could help me.
They'll filter through to BC eventually - it pulls from a lot of players APIs.
To post there you just have to allow all the scripts to run and click on the killboard menu option for Eve - HTH for the future.
A bit of advice if I may, although as you're new to PvP I quite understand if you ignore it, I would have at that stage too :
You will be much happier with your PvP if you simply ignore kill/lossmails. Give your corp your limited API and the CEO can sort out a killboard if he wants (CEOs get all the kill/lossmails for the corp members).
I gave up looking at killmails best part of a year ago. I don't post them now and nobody has my limited API. I simply don't care what the target had fitted etc unless the fight was unusual. For example I had no idea I had that Kitsune killmail as I am out of the habit of looking at the combat log. Amusingly the Kitsune pilot and I have a fair bit of PvP "history" between us - I never noticed who he was last night or I'd have said hello as he popped
I can understand why corps want macro data from kill/lossmails - it allows the corp to quickly assess whether they're getting pwned over a period of time by a specific corp for example. As an individual pilot I'm well aware of whether things are going OK without constantly inspecting my kills so I no longer bother