Re: multi purpose module and J1.7

Hello:
I have recently purchased the product, and everithing seems to be ok at the moment, excepting because I get the following notice when installing the multipurpose module:

Notice: Array to string conversion in C:\Inetpub\vhosts\mydomain.com\httpdocs\administrator\components\com_nbill\framework\interop\nbill.interop.joomla_1_6_plus.php on line 342

Details:

I have installed the module, but no module is shown in the administrator area. This means i can not configure it.
After the installation, there is no error message. Just the Module does not appear where should be.

The "Notice" only appears if i set the error log to Maximum.
The "Notice" all the site (in teh backgroud) I mean, appears for each page i load.... The site is not locked, but it is a problem, of course.

Additionally, I cannot uninstall the module because does not appear in the module list and The model folders are there, the installator have installed them without problems...

Any idea?

Thanks for your help
Santiago