Workflow transport problems

[Aravindan Kalaimannan]

HI All,
  I am facing problems, when transport workflow templates into QA &
Production systems. First time, transports are fine, but after making
changes in Development and on transporting, it creates a inactive
version in QA. And still continues to work with the pervious runtime
version. What is to be done to have to corrected version active in QA or
 
Production. We are using 4.6B version.
 
Also having a new problem, when copying workflow (WS) into new name and
transporting it only the workflow template is found transported (WS) all
the
links to the task (TS) are missing. Any idea why this is happenning?
 
Help will be highly appreciated.
 
Thanks in advance.
Aravindan.