Does AJAX Infinity work with children categories ?

It replaces the pagination so anything you do with regular pagination on category blog, AJAX Infinity does too. In this example you would set the menu idem to be category blog and to include subcategories. Then it will show articles from subcategories too and paginate them, AJAX Infinity will load them as you scroll down.

Yes, you can use auto loading or "more" link (or both - auto loading until set page and link after that) that you can style with CSS.

It's not a module, it's a plugin and yes, you set the blog settings in the menu entry.

I bought the plugin this morning. I haven't recived a download link and when I enter my paypal e-mail adress (which is the only one I gave during the purchase process) I got an error message :

This email is not registered in our database. Please enter the email that you used when you purchased the product.

I'm going to send you more details by PM. I need it very quickly.

Thanks

It's not possible to contact you via PM. Check your e-mail adresse I sent you an e-mail via your contact form.

Thanks

I haven't received anything. I will send you an email right now.

I was able to download the plugin. Thank you very much.

I want to change the texte of the load more button. When I replace the "Title of the Next hyperlink" with another variable of the translation file (eg : JSHOW) the next button does not appear. What can I do ?

That's not what that parameter is for.
The only way to translate it for now is to modify the file plugins/system/ajaxinfinity/ajaxinfinity.php
on line 202 replace:withor if you want it translatedand add PLG_AJAXINFINITY_SHOW to translation files.