First close your TRK wallet, then download this...
bootstrap.dat has been updated, now will sync up to 123642.
http://downloads.truckcoin.net/bootstrap.zip
http://downloads.truckcoin.net/bootstrap.zip
...then extract/unzip the bootstrap file to your Truckcoin roaming folder...then delete everything in the Truckcoin roaming folder except for your wallet.dat (do not delete this - you will lose all your coins) and the bootstrap.
....the restart your TRK wallet and hope.