I have followed all the steps and created the site in the backend when i move on with the sub site installtion, Every thing goes well but when it comes to db config step the site, the next button is not working,
1. I have tried filling all the values but it is not working.
2. And also i emptied all the fileds and tried still it is not working.

The basic error message itself is not displayed here. i cant move on with the next step.

I am attaching the image file.

Technical details:

- Unix Symbolic Links: Allowed
- Status of check pacth is full OK
- joomla1.5.15
- php 4.3.9
- com_multisites_V1.2.0_RC5

Please help!

Thanks in advace
Tony

When you are in the standard joomla installation 'DB configuration", joomla check the DB connection and when they are not valid remain on this screen.

I don't think this is related to your old JMS 1.2.0 RC5.
Do you know that you can receive a new download ID to get the latest version 1.2.14 when you apply the procedure described in the FAQ
www.jms2win.com/faq#sec-122

You have to check that you have the correct host, dbname, login and password.
Also ensure that you don't use jos_ table prefix that is not recommended.

Thnaks for the Update! i have Done that. My problem still persists. I shows lot of JS error in the installtion steps.

Please help!

Which JS Error that is a new information.
In your previous post you say that you can not continue the installation.
The reason is that you don't have enter correct DB parameters.

Which error message. Just say JS Error does not mean anything.
Which code, line, ....