everything you want to know and more can be found at https://eoscollective.org/

If you want to skip all of that and just go straight to the walk-through on registering tokens purchased on exchange, see below. Note: registration part of the walk-through begins at "Step 3" of the article:

https://steemit.com/eos/@sandwich/contributing-to-eos-token-sale-with-myetherwallet-and-contract-inner-workings