Multi-part yEnc

Is there a way to recombine a multi-part yEnc post?  Whenever there is a 
post in yEnc, if it is say a picture that is 1/1 then it comes through fine; 
however, if it is a picture broken into parts such as 1/2 and 2/2, if you 
combine an decode, all you get are two separate files and no way to combine 
them.  Any ideas?
-- 
Joker
"...God hath made me to laugh, so that all that hear will laugh with me." 
Gen. 21:6