Here's a simple tutorial on how to display the forum widgets on the homepage ONLY.
Forum Version: All version

1. Go to ACP > Display > Pictures and Colors > Colors > CSS:
- If your widget is on the right side, put this one:

Code:

#content-container div#right {
  display: none !important;
}
#content-container div#container div#content {
  margin-right: 0px;
}

- If your widget is on the left side, put this one:

Code:

#content-container div#left {
  display: none;
}

2. Now go to ACP > Display > Homepage > Generalities > Homepage Message:
- If your widget is on the right side, put this one:

Code:

<style>
#content-container div#right {
display: inline !important;
  }
#content-container div#content {
margin-right: 270px !important;
  }
</style>

- If your widget is on the left side, put this one:

Code:

<style>
#content-container div#left {
display: inline !important;
  }
</style>


Have fun!  :P: