jsaad,
you can use a newer version of IMAT to backup and change an older database, (unless it is from an older gateway.) you just can't create a database for an older card with a newer version of IMAT.
If you have Win 2K you should try creating the dialup connection as per the instructions in the help of IMAT, but if that doesn't work you can do the following:
How to connect to a PRI with WinXP and Win2K.
There is a limitation to using this type of connection and it can be a bit cumbersome, but it beats packing an older laptop around. You will be able to modify, backup and upload databases to PRI Cards using this method. You need to have a version of IMAT that supports an ethernet connection, version 7.1.0.3 or higher I believe. Follow the instructions in IMAT to create the serial cable modem and set it at the required baud rate settings as per IMAT docs.
Then (I am using examples from XP, but Win2K is quite similar) create a new network connection using the new connection wizard. Select the connection on connecting directly with another computer. Your laptop will be the guest in the connection, Enter a name and for the modem select the communication cable between 2 computers. Finish the connection and it will bring up the username/password box. select properties and on the general tab click configure. Set the baud rate to 38400 and check the show terminal window box. Click on the networking tab and deselect all protocols except TCP/IP. Click OK.
Connect your serial cable to the PRI Card. Open the connection that you just made. odn't worry about the username and password, they aren't necessary. When you click connect a window will pop up. Make it active and enter in all caps CLIENTSERVER and click continue. The connection will establish. Now open IMAT. select the connect to site and use the connect over ethernet option. for the address enter 10.10.10.1. IMAT will connect and then you can work with the database as normal.
The biggest drawback to this method is working with older databases as sometimes I have had to install older version of IMAT becuse of upgrades and differences in PRI loads on the 200, 200icp and 3300/2k. I may be abit more work but it is reliable and I don't need to dual boot or pack an additional laptop around.
I hope this gets you far enough, I have to do up a proper document on this on of these days.
Simon