Digi Wi-EM connections

Hi, i have a Wi-EM integration kit.
I tried connnecting the hardware to my com …and apparantly…my com has no reactions to the hardware…
is there any detailed installation available ??
i connecteed the RJ-45 crossover cable from my com to the Digi piece, da power cable on, n da serial port from my com to my hardware…

i tried installing the Realport…but it says no device listed.

Can anyone help ??
the Digi Discovery programme says no device found.

Please help…