What shocks were on the B44? There's no AE big bores out.
I'm guessing you have the original threaded shocks not the V2s?
The V2s come on the B4.1 FT and the B44.1 and use a different way of putting the seals in the bottom.
Elvo has a great guide on building the original shocks here:
http://users.telenet.be/elvo/12/8/1.html
If you follow this you should be fine (mine aren't leaky)
Although there were some shock bodies that weren't machined correctly allowing the clip to come out. If yours were part of that batch then I'd contact the shop that supplied them. but try Elvo's guide first.
Good luck!