Thanks all of you for your help.
Finally I got to the point. My first problem was working in a WinXP from a virtual machine using a serial-usb converter. It was a hell trying to configure everything. Then I installed PanelBuilder32 and RSLinx Classic Lite in our good old IBM laptop with a fully-operational serial port which works under W2000. Then I followed the steps in the manual (Workstation setting with PIC driver, using this driver for file tranfer). It was done in 5 minutes after I got all installed