Foros Club Delphi - instalar vclskin

hola amigos

Me descargue el VCLSKIN 550 pero no puedo instalarlo, cuando lo compilo me dice lo siguiente

Código:

[Linker Error] Unresolved external '__fastcall Designeditors::TPropertyEditor::GetIsDefault()' referenced from C:\DOCUMENTS AND SETTINGS\SHK\ESCRITORIO\SKIN\SOURCE\WINSKINREG.OBJ



[Linker Error] Unresolved external '__tpdsc__ System::string' referenced from C:\DOCUMENTS AND SETTINGS\SHK\ESCRITORIO\SKIN\SOURCE\WINSKINSTORE.OBJ



[Linker Error] Unresolved external '__fastcall System::Pos(const System::AnsiString, const System::AnsiString)' referenced from C:\DOCUMENTS AND SETTINGS\SHK\ESCRITORIO\SKIN\SOURCE\SKINREAD.OBJ



[Linker Error] Unresolved external '__fastcall Graphics::TFont::SetColor(const Graphics::TColor)' referenced from C:\DOCUMENTS AND SETTINGS\SHK\ESCRITORIO\SKIN\SOURCE\WINSKINFORM.OBJ

y asi muchos mas todos del tipo Linker Error que es eso y como puedo arreglarlo ????