Eaglemoss Cybot

I have tried to download the hand set upgrader from CD 5 but I keep getting the error message cannot initialize serial port .I have the original lead connected to the hand set ,and set to pc link as instructed, the lead connected to the USB socket in the computer .I suppose this because the sofware is 10 years old and not compatable with todays computers .My computer is on windows 7 64 bit .operating system.I have got the old CD discs to work ok by running them in windows xp mode.Is there any way to download the programs from the CD discs to windows 7 system .I have recently just built TOM the second robot .All these robot parts were bought for my son 10 years ago ,I wanted to complete the building of them today .but the problem is getting the programs to download to the hand set from today's computers.Hope somone can help wth tis problem
Thanks
Terence.