I would like to know if there is any template or software for making
websites in ASP. What i need is something like PHP NUKE which if for
PHP. Is there any similar prduckt for ASP in internet ?

you can try this :

AccessAble Help Desk Client Server 2.03 

http://www.lnsoftware.com/

features:
A comprehensive Windows and Web-based help desk system. Utilizes
Microsoft SQL Server on the back end. The web interface consists of a
combination of ASP and HTML templates. Both the windows and web
applications are included in the site license. Registered users
receive additional Web themes.

If you want an ASPX / .Net version:
http://www.dotnetnuke.com/

if you want an ASP version, I have one I did a while back:
(when the company went under, I pulled most of the references, but
this is from a an entry: http://recenter.tamu.edu/soft/sw1221.html --
ignore the licensing price)

You can find aspnukes at following links:

https://sourceforge.net/projects/aspnukecms/
http://developer.berlios.de/projects/aspnukem/

Asp nuke,the community and other downloads can be found at:
http://www.rot.dk/aspnuke/
http://www.rot.dk/aspnuke/downloads.asp?id=12