I think that you may well need another visit from the engineer!
The fact is that many such CD-RW's are shipped with either a copy of Easy CD or Nero. To stop copies being made these are "Locked" to a specific brand/model and will not work on other devices. It sounds to me as though the CD is working (Can you write a CD with Win XP?) but that it is different from the original that was installed with your system and therefore Easy CD Creator is "Looking" for a SPECIFIC Make or model that it cannot find.
Another solution would be to get the manufacturers to ship the correct copy to you by post.