Programme in Series has `firstbcast' But no `available'.

[J K.Eason]

> When it comes to few custom changes made, 
> I usually manually/visually compare B to A 
> with a text editor and note down the patched code. 

If you use Textpad (for Windows), you can compare two files that you're
viewing via Tools > Compare files... (<CTRL>F9). That brings up a third
window with the differences between the two files. Very handy!
-- 
Regards
       John