Windows:
http://downloads.truckcoin.net/truckcoin-qt-v1.0.0.0-win.zip
Mac:
http://downloads.truckcoin.net/truckcoin-qt-v1.0.0.0-osx.zip
Linux Ubuntu x64 14.04:
http://downloads.truckcoin.net//truckcoin-qt-v1.0.0.0-ubuntu-x64.tar.gz
Raspberry Pi:
coming soon
Windows daemon:
http://downloads.truckcoin.net/truckcoind-v1.0.0.0-win.zip

Blockchain bootstrap file for faster initial sync: http://downloads.truckcoin.net/trkbootstrap.tar.gz (updated March 06, 2016)
Unpack to Truckcoin data directory (where wallet.dat is) and start the wallet.