Pack:
http://rapidshare.com/files/78763861/eng.rar
A.2000:
http://superclic.blogspot.com/2007/09/download-autocad-2000-portable.html
A2008:
http://superclic.blogspot.com/2007/09/download-do-autocad-2008-portable.html
Surf 8:
http://degraca-emaisgostoso.blogspot.com/2007/12/sur-8.html