I've since deleted all drivers & traces of my attempts from the upstairs computer as i decided to start from scratch.
depending on how you went about deleting the "drivers," if that's in fact what you deleted, it may have been inadvisable or it may be inconsequential; either way it's done now!
Do i check the box in internet option properties, advanced, wher it says 'allow other web users to share files & printing'? & Do i check the box in the BT internet provider property box, where it says, 'Allow other users to connect through this computer's internet connection'?
well i most certainly would not on a stand-alone pc (even if you're connecting through a router), but i don't use any type of resoure sharing programs, such as bearshare, grokster & kazza for music, which may need those settings to be selected. if you do use such a program then i would suggest that you post an inquiry on how to setup your computer in order to use the program(s) safely and securely as a separate post in an appropriate forum. if you're using the router to connect and share information between the two computers then you would need to have the files & printing box selected on both computers; you'll need to call you're isp about the BT setting (my inclination is to say no, that the BT box shouldn't care what's on the private side of the network - your computers - and the setting is …