The chassis number breaks down as follows
WF0 - world manufacturer designator, in this case Ford AG
L - model variant, in this case a rwd van
XX - unused constant, it will always be XX
G - production source, in this case ford germany
B - factory, this time Genk
F - model, a transit
L - model variant repeated
Y - year of manufacture, this is 2000
E - month of manufacture, August
5 numerals, because no one expect to make more than 99999 vehicles a month
I think Etis is confused.
Edit: forgot to add this confirms you have a mk6, if you had a mk5 the model code is V
Edit 2: Etis is confused !!
2000 model fiesta data says model code for fiesta is J
mk5 transit data says model code for transit is V and fiesta is L
mk6 transit data says model code for transit is L, no mention of Fiesta