Just work it yourself with tutorials in the tutorial section, if you are having trouble or being lazy to even give it a try, your hotel would probably collapse in the near future when you have to code and fix bugs. Everyone needs a start and this is yours.
Are your paths correct? i see it is in extra/swfs, Is there a file in wwwroot called extra? Recheck them properly and check if you changed the external variable's ip to domain.
Anyways if you want this maintenance page I think it's possible to make it quick, just get a maintenance page and add the snow script and with a little edits on the timing and amount of snow flakes at a time, it could create a quick blizzard. But that's for the idea of the maintenance page but...