URGENT !!

[Shashi Dahal]

Dear all !

        Can I install qmail in any other directory except /var/qmail ? If so, then
do I  have to edit all the files ?? What should I do ?? 
Another is can I run qmail with control files in any other directory except
/var/qmail/control. 
I cannot do anything to my current /var/qmail. and I want to run only
qmail-inject with smtproute in other directory except the default.
Please guide me on what to do ??

Any links, references, RTFMS, spams will be highly appretiated.
Thanks in advance !

Shashi