Module development and code questions

Is there a way to make a module do this:

When viewing a node of a category, automatically show the recent nodes of that category?

Hi !

I have developped a module that allow to make a captive portal with drupal (in combinaison with chillispot).
Image : chillispot, drupal, multi-site... Yes !

I'm still interesting in having such a module, but I cannot continue his developpement for 2 main reasons :

First time submission. Submitted a new project using Creat Content -> Project. Now I don't see any mention of the fact that a new project has been submitted. No email, no "pending" status, just nothing. It is as if the submission has disappeared into thin air?

Are we supposed to be able to see the submitted project in a pending queue while await approval?

Thanks.

Fatal error: Call to undefined function: form_group() in /home/public_html/drupal/modules/taxonomy_block/taxonomy_block.module on line 120

Any idea?

Does Flexiblock works for 4.7?

I get this error:

Fatal error: Call to undefined function: form_checkbox() in /public_html/drupal/modules/flexiblock/flexiblock.module on line 141

I am working on a classified ads module that integrates with Drupal, and possibly release it to the drupal community if there are sufficient interest.