Hello Bluebell - the best person for supplies and advice is Helen Howes at
www.helenhowes-sewingmachines.co.uk She doesn't mind if you email her questions. Alex Askarov charges for downloads for information which can be found elsewhere on the net. He charges a fiver to download his spiel on tension adjustment, whereas you can find it reproduced free on the Treadle On site. Also you can watch my vids. They are free too.