DBS Walk&Follow 2004 can be purchased throught partners of DBS Studio:
The DbsimStore
$23.99 (USD)
Purchase on DbsimStore
The FlightSimStore
$27.30 (Australian Dollars)
Purchase on FlightSimStore
simMarket
€17.95 (EUR)
Purchase on simMarket
SimulShop.com (PerfectFlight)
Purchase on SimulShop
alfaFly
Purchase on alfaFly
fsx-download.com by SurClaro
Purchase on fsx-download.com
DBS Walk&Follow for FSX and FS2004 in one install package can be purchased with discount:
$39.99 (USD)
$49.95 (Australian Dollars)
€29.95 (EUR)