To install, use the Newton Connection Kit or the Package Installer, in the usual way.

You must install three packages, according to your requirements:

DicStar in Spanish (program in Spanish language)
--------------------------------------------
DicStar Espaol.pkg
Ing_Esp.pkg
Esp_Ing.pkg

DicStar in English (program in English language)
-------------------------------------------
DicStar English.pkg
Ing_Esp.pkg
Esp_Ing.pkg

You can install DicStar 1.0 in internal memory or in a PCMCIA Card.

Also, you can install only the dictionary you need (English->Spanish or Spanish->English).

The program can be registered online in CompuServe (GO SWREG) using 
Registration ID #7561