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Convert your vBulletin 3.x Templates to vBulletin 4.x

May 6th, 2010

Here you have a helpful script in this matter:

Our team is in the middle of upgrading a high traffic vBulletin 3.6.8 Website to vBulletin 4.0.3.

We are working on a Stage server (private testing server), upgrading files/database was pretty straigthforward, we just followed the instructions in “vb4_readme.txt” of the vB4 package.

Our problem came when we wanted to preserve the Website look and feel, the vBulletin Template Syntax changed considerably with vB4.

In our particular case we got to the conclusion that it would be easier to take the old template (preserve markup, tables, etc.) and change the syntax of the tags from vB3 to vB4.

Doing this manually is an exhausting and error prone process, that is why we created a simple copy/paste PHP script to do the work for us:


We are not done with the upgrade yet so there may be some improvements we could make to the script but I thought on making it publicly available in case someone could need it, so there you have it :)



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  1. May 6th, 2010 at 22:45 | #1

    bien hecho tio

  2. Jeroen
    October 7th, 2010 at 09:56 | #2

    Hi There,

    i’m preparing to upgrade a large forum with 3.x templates to the new v4. Is it possible to get a copy of the script you made?

  3. October 7th, 2010 at 16:12 | #3

    Hi Jeroen, sure thing, here it is:

    I have a recommendation though:
    After trying a few approaches to this, the best way to go turned out to be taking the vBulletin4 default Style and customizing it (HTML Markup/CSS) to look like the custom vBulletin3 Style as much as possible.

    Well the vBulletin guys not only changed Markup/CSS in the Master Style, but they also added templates (a lot of them), removed some others and changed core JavaScript functionality.

    Fully converting a vBulletin3 to vBulletin4 Style can be accomplished (we also did it :)), but it takes a lot of work and you’re probably going to end up with a buggy vBulletin Style.

  4. ViperMaul
    September 15th, 2011 at 07:45 | #4

    Thank you so much for publishing your conversion scripts.
    I guess this is not the magic bullet if I understand your reply.

  5. khoapda
    March 27th, 2012 at 11:48 | #5

    this convert vb3 to vb4!

    how do from vb 4 to vb 3 ^^

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