I0coin is now trading on Cryptopia.  It can be traded against eight different cyrptocurrencies.  Here are direct links to two.

https://www.cryptopia.co.nz/Exchange?market=I0C_BTC
https://www.cryptopia.co.nz/Exchange?market=I0C_LTC


They also have a built in block explorer.

https://www.cryptopia.co.nz/BlockExplorer?coin=I0C