So, the testnet client works perfectly. I've sent and received a bunch of testnet waves!!!! This is super exciting!
http://127.0.0.1:6869/transactions/address/Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva[[{"type":2,"fee":1,"timestamp":1460723506928,"signature":"29J3knmEQVRRhc5XEWjHgwGPd39aRC9zuEvRjREQAeCaJc7wtcGfJrr1DmcnwfXEwiByuAdR8g9V2WcgFAor693c","sender":"aBLHjuxTk6nfxTwq1LuqiAgHF27GK3TZa","recipient":"Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva","amount":27},
{"type":2,"fee":1,"timestamp":1460723511801,"signature":"29r7d2S79KmbK7LXBW6HBXEMJNhb485vz5wYPffUU2ph1e6czW4R48kDfWbHDrCHaPWARkZyLEc6XP7peKe2f9wL","sender":"jACSbUoHi4eWgNu6vzAnEx583NwmUAVfS","recipient":"Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva","amount":10000},
{"type":2,"fee":1,"timestamp":1460723758651,"signature":"GjQYdWWZZ4pAiHj531a56p7wMjYrn4eTZoW24bRHFBceAqhqybH9Yvp3S7wdtxELDkjLr8nYqSdavpBM1o5aVTK","sender":"Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva","recipient":"aBLHjuxTk6nfxTwq1LuqiAgHF27GK3TZa","amount":42},
{"type":2,"fee":1,"timestamp":1460723883087,"signature":"2nzdvpa2f4UarpNxGVC7ScRaMjZkmu52e4GNiGQkiY3dC5yjGAuYS7TWnHeYxE2h64cLHo2HAxi6g6P6sGfrGr21","sender":"ZFrpiTzudfttrfkMQUSVwZ1zRNxXXGS7F","recipient":"Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva","amount":40},
{"type":2,"fee":1,"timestamp":1460724111056,"signature":"2QKBBLQC6LPyzYvNfxr6xEwJ62JYZxk8BCoNiy3eF993CygEXW3aczbxZv6QCMzY2vE2je5h3FwmAxEUPyjU3hrM","sender":"Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva","recipient":"ZFrpiTzudfttrfkMQUSVwZ1zRNxXXGS7F","amount":42}]]
http://127.0.0.1:6869/addresses/balance/Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva{"address":"Vt48LMV321x2XxJaJ8eB1MeScsAGzuUva","confirmations":1,"balance":9981}