Hi,
my environment is:

Joomla 1.5.23
JMS 1.2.59
MySQL: 5.0.92-community Sharing supported, unlimited databases
Unix Symbolic Links: Allowed
PHP: 5.2.17

I want to allow front-end users to create slave sites; master site is in a sub-directory, for example:

public_html/demo

and I want to deploy new slave websites in separate directories, like:

public_html/site1
public_html/site2
public_html/site3
...
public_html/siten

After configuring JMS website template and after testing front end site creation I receive this error:

Unable to get the Website ID

I have read all the manual and seen all the tutorials, all parameters seem to be correct, but I can't solve the problem;

here follow my template parameters; I hope a complete reply could be useful to other customers...

List of domain names (*): http://{site_url}/u{user_id}{site_prefix}
Template site (*): <Master Site>(XXXXXXXX)
To site ID (*): u{user_id}{site_prefix}
Admin User (*): admin
New DB Prefix (*): u{user_id}{site_prefix}
Deployment folder: {site_dir}

These are all mandatory fields.

Thank You,

Do you have enable the "billable website" functionality flag when you created the menu to build website from the front-end ?

If yes, do you have quota ?
Do you see quota in the "settings" menu ?

My website quota is 0. Have I to buy a quota even if my website provides free slaves websites?

Regards
Ronda

NO but it seems that you are trying to create "billable website" that require quota that would explain this error message.

You didn't replied to the question concerning the "billable website" flag that you can enable in the menu. I suspect that you enabled the "billable website".

"billable website" flag was not enabled in the menu. I have tried to create a new website from the front-end with a registered user and it replies: Unable to get the Website ID. I can't understand; do I need to pay for support? I have done all correctly and I would prefer non to spend more.
Best Regards
Ronda

Do you have CURL apache module present and available in your configuration ?
You can check your configuration with joomla 1.5 help / system information or joomla 1.7 / site / system information