Which welcome headers is better for seo?

For vB 4 there are 2 versions of welcome headers.
One works with notices the other with templates.
Welcome Headers: Notices System Default Messages & Settings to Drive Participation - vBulletin.org Forum
Welcome Headers: Template System Messages & Settings to Drive Participation - vBulletin.org Forum

Which version is better for seo reasons?

I guess the template version, because there I can use VirtualHTML?

Actually i don't think any of them is necessary at all. Default vBulletin Notices + Virtual Html is the best option you can have.

Sorry, I didn´t proofed vB 4 exactly but has vB now more notice options?
Like welcome headers has?

Originally Posted by Kolbi

Sorry, I didn´t proofed vB 4 exactly but has vB now more notice options?
Like welcome headers has?

The first one you linked is basically just 4 templated Notices that have been proven to work, for Ted at least.

I think of both products as more Visitor Participation focussed, than SEO.

Perhaps you missunderstood me. I don´t want to improove SEO with this hack. I wanted to know which doesn´t influence SEO in a negative way?

But I gues the template version is better, because virtualhtml is easilier done with it?

As i said vBulletin Notices works way better then both hacks you linked. The important question is why do you still want to use an external modification and spend server resources whegn vBulletin Notices does everything both of those mods do.