If you go to the www.cp.pt website you will find in the top right hand corner a small icon made from the UK flag.
Click on it and it will take you to the English language site.
If this does not work you will have to go to Albufeira Station, which is at Ferreiras, 8km from Albufeira and book the day before.
To get from Entrecampos to the Hotel, you can either take the Metro in the direction of Odivelas (Linha Amarela) and descend at Campo Grande and walk to the SAS Radisson (3 minutes) or (probably better) grab a cab if you don't have to many bags. Cabs are not that expensive in Lisbon.