Need making an XML product to add a simple HTML on forumhome?

[ChiNa]

Hey everyone and to the vB.org amazing coders, I have made a few amazing modifications so far, and all of my modifications are in HTML using CSS and JS! You can please go a head and check them, and If I could make them to a product it would help many people, sadly because its to many template changes in my modifications.

If I could get 2 different Ideas or example of xml products how to add html code on a vB3.8.7 and vB 4.x template, because all of my modifications are for vB 3.8 and 4.x, and I will continue this way, make my products work on vB 3.8 and vB4.x!

So far I dont know nothing about making an xml product! So i was thinking maybe it was about time asking for help and making my work grow and to help vBulleting.org also!

I have been following up about template cache and hooks here on vB.org example:
$vbulletin->templatecache['FORUMHOME'] = 'MY CODE NAME' . $vbulletin->templatecache['FORUMHOME'];

I also been trying to add a product, and after adding I extracted the xml, and so far I have filled out the Product ID, Title, Version, Description, Product URL, Version Check URL, so I could understand the way of it, My questions is, can anyone provide me a simple script or xml code for adding a simple html code on forum home or showthread, with no Database change, and no template replacements, Just a simple html code to add.

This could be my FIRST part of learning, and then later I can start working on replacing codes, or adding codes in the templates! But my first need is to get a START CODE so I can work my way up! This is why i am here, I would be very appreciated If someone could help me create a simple XML product to add HTML codes on forumhome or showthread! And I will again say, No database change, or template replacments!

Thank you very much in advance, and sure I will give full credits of my products in future to the person helping me out with this!

by CMan