trains spain renfe

What 's the difference between tourists and literature in the preferred site for book tckets RENFE in Spain?
I try to reserve a train @ http://www.renfe.es/. This is a night train, ND need to know if I can get tickets in sleeper class.
Here is the RENFE site in English. At the top are two phone numbers. You can talk to someone in English, if you phone them. http://www.renfe.es/horarios/english/index.html
Renfe Ave, Spanish high speed train
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Renfe 448 in Spain_ ORIGINAL COLOR TRAIN SLIDE $5.50 |
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RENFE Spanish Nat’l Railroads Postcard BENALMADENA TRAIN STATION DEPOT SPAIN $5.00 |
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RENFE Spanish Nat’l Railroads Postcard TRAIN STATION DEPOT TOLEDO SPAIN $5.00 |
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RENFE Spanish Nat’l Railroads Postcard TRAIN STATION DEPOT COLMENAR VIEJO SPAIN $5.00 |
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RENFE Spanish Railroads Postcard TRAIN STATION DEPOT ARANJUEZ SPAIN $5.00 |
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RENFE Spanish Railroads Postcard E-26 BUSTARVIEJO STATION TRAIN DEPOT SPAIN $5.00 |
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RENFE Spanish Nat’l Railroads Postcard E.20 TRAIN STATION DEPOT SEVILLA SPAIN $5.00 |
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RENFE Spanish Nat’l Railroads Postcard MIRAFLORES TRAIN STATION DEPOT SPAIN $5.00 |
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Electrotren Spain HO RENFE Talgo 2nd class passenger coach TB6-602053 $10.00 |
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146-DEL PRADO STATIC N GAUGE TRAIN-RENFE 340-SPAIN $12.63 |
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SPAIN Train Timetable 1997 RENFE Railways Kursbuch Indicateur Horario Orario 時刻表 $40.00 |