Dario,
Follow these http://adgsoftware.com/ansvr/ directions for installing
ANSVR local plate solver to your computer and configuring SGP to use it.
Follow these directions
http://mainsequencesoftware.com/Content/SGPHelp/SequenceGeneratorPro.html?SettingupPlateSolve2.html
for setting up PlateSolve2.