Custom BBcode with several {TEXT} inside and nested BBcode

Hello there!

I'm updating my forum from 3.1.10 to 3.2.7 and some of my custom BBcode are broken.
Especially, I have some troubles with a BBcode which does a table with two columns.
BBcode:

[col2]{TEXT1}|{TEXT2}[/col2]

HTML (3.1.10):

<table width="100%">

 <tr>

 <td style="vertical-align: top; width:50%; padding-right:10px;">

 {TEXT1}

 </td>

 <td style="vertical-align: top; width:50%; padding-left:10px;">

 {TEXT2}

 </td>

 </tr>

</table>

Usage:

[col2][b]toto[/b]|toto[/col2]

Result (in 3.2.7):
http://img110.xooimage.com/files/d/1/9/capture-d-cran-du...03-40-52-5629518.png

It makes a table with two columns but if I put another BBcode inside, this one isn't interpreted.

After many hours of search, I have found this:
HTML:

<table width="100%">

 <tr>

 <td style="vertical-align: top; width:50%; padding-right:10px;">

 <xsl:apply-templates select="@content0" />

 </td>

 <td style="vertical-align: top; width:50%; padding-left:10px;">

 <xsl:apply-templates select="@content1" />

 </td>

 </tr>

</table>

But there is the same...
http://img110.xooimage.com/files/d/1/9/capture-d-cran-du...03-40-52-5629518.png

For this example, I use the BBcode

[b][/b]

but it's the same with all others.

I can't use another BBcode for the table or any extension for that because I have almost 2600 posts using this deprecated custom BBcode.

Have you any solution for that, please?