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I cannot recommend
http://www.techsupportforum.com/ enough .... they have been extreemly helpful (thanks bughunta for the original link) ......
using Hijackthis and Cwshredder programs and a lot of help from the above boffins I have finally deleted the relevant unwanted entries from the registry's ......
You really need to know what and not what to delete, and a mere mortal like me would be fumbling in the dark without the very helpful advice from techsupportforum.com .........a great site ....
below is my thread and the advice given, might be useful to others ....
http://www.techsupportforum.com/show...threadid=11858