If you have a list of the coordinates you can change the list into a script file using OpenOffice, Word or Excel. the script file will be a text file with the commands as you might type them, each on a line. Then type "Script" on the command line and tell it what the file name is.
Each line would be similar to:
Insert BlockName X,Y,Z 1 1 0
The file should be pure ASCII (use Notepad or save as DOS text file) ans should have a .scr as the extension. YOu can read the help information in AutoCAD for scripts.