Hi Sonia, I don't have a LPI but i do have a DSI which shares the same software as the LPI.
First, i suggest reading the .pdf file from the Meade website here:
http://www.meade.com/manuals/Telesco...LPI_Manual.pdf
Also download the instructional video's here:
http://www.meade.com/educational/index.html
hope it helps