Is there any order in delivering forms, libraries etc?

I delivered a new version of a form that works perfectly on my test 
system but when I install it on my customers system it will not work.

I then installed the undelivered version of the form and it balks at the 
libraries listed in the USES section. The libraries are delivered and 
have the exact same date/time stamp, as are on my test sytem. Thanks for 
any help.

Peter