comgraph

hi,
i have an application to convert from simatic S5 to simatic S7 with a comgraph superviser wich I want to replace by a wincc application I have the comgraph source but i connot read it because i don't have the comgraph application. i need it to understand the meening of the tags .can anyone send me a link to download the comgraph.
thiks for ur help

Dear Mr.neo2006
can you tell me how to use comgraph to download application from PG to CP527
Best regards