Well, to be honest, I think you should get more informed on other resources and post your findings here. I say this, because your question needs a fundamental understanding on how ICOs, accounts, wallets, tokens, gas limits and of course blockchains work.

If you have cryptocurrency already - exchange some. If not, find out about exchanges and buy some, or start mining ;-)

There are numerous ways to create Ethereum wallets. To be a participant in an Ethereum token sale you need a wallet that supports the token in question. There is a standard for Ethereum tokens, called ERC20.

Please note that sending from an exchange usually results in loss of your money, because the tokens will be sent back to the address you sent from.

The two most basic ways to create ether wallets are from the offical Ethereum client which needs you to become a full node and myetherwallet.com which is also open source and one of the easiest ways to generate wallets that can accept tokens.

Ethereum "Mist" Client: https://github.com/ethereum/mist/releases

myetherwallet: https://www.myetherwallet.com/

What will become very relevant is the gas price you will have to be in order for your transaction to become validated during the ICO. You can adjust the gas price at the last step when sending a transaction.

Disclaimer: Please do your own research and only take my advice as help on technicalities and not investment. I don't guarantee you for anything to work like it does for me.