Tanuki ji,
Maybe no website, but surely a telephone? You could get some information that way, assuming that whoever answers the phone speaks English.
The most important things are to keep an open mind and a sense of humour. Those will serve well not only in a gurdwara, but also in life, in general.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/new-to-sikhism/30372-going-to-gurudwara-very-first-time.htmlReference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=30372
Lord love a duck!