as far i know the rdp session is 2 session maximum in win 2003, is there any way i can connect 3 remote session concurrently ?
also i tried many times to connect using the console mode, but it seem like i have only 2 session 1 console and 1 using the regular terminal services rdp session ?
That just means you're not connecting to the console properly.
Try either
mstsc /admin /v:machinename
ormstsc /console /v:machinename
. Depending on your RDP version, one of those will work.However, if you really need more sessions then you may want to add the Terminal Services role to the server. You'll need to sort out licensing though as I believe you'll need some TS licenses.
start-->run-->mstsc /admin
This works for service pack 3 and up. If you're connecting with sp2 or earlier you'll need to run 'mstsc /console'.
Your other option would be to open Terminal Services Manager from another server (or create your own MMC Snap-in if you've installed adminpak.msi on your workstation) and connect to the machine name in question. You can boot inactive sessions from there as well.