Eluned, you can either just drag the cursor (with left mouse button held down) over the text you want, and copy & paste it from the edit menu, or save the whole thread via File/Save As--you can use the default name which is Thread.cfm, or rename it as an html file (I think) or whatever.Jeez why did I post twice you're wondering? I don't know, just excessively impressed wit' myself I guess. Confused actually.
W-O