Do we get some type of confirmation when participating in the ico?
You can use the BTC signed message at the bottom of the contribute page to verify the ETH contribution address, and verify the transaction via etherscan.io or another block explorer.
There are multiple ETH contribution addresses for tracking and referral purposes. Make sure to verify the ETH address using the BTC signed message on the contribution page.
We can scale to fit any amount raised during our crowdsale. If we raise more it just means we can accomplish more sooner.