The Vu+ tuner works perfectly fine.
The Sundteks run in a semi-closed environment. They are independent of kernel issues of receivers. You can even use them in a PC and almost any receiver, not just Vu machines. If/when you buy another receiver, you can always re-use the tuner. If you sell it, you are likely to get more for it.
With regards to creating bouquets, you can use AutoBouquetsMaker which will do satellite and cable too. You can even combine them.
Thanks for your help. I have just ordered the sundtek usb tuner as suggested. I use autobouqet e2 for my sattelite. How do I use the autobouquet c for cable and where can I download it from , how to install? Is there a step by step guide please? Also do you have any idea where I can purchase vm line from? Many thanks