I assume you mean the info box template? If so, how they currently are works fine; some have tabs if necessary (when a character has appeared in more than one season of anime) and just one picture in the box.
I realise now you must have been looking at Thunder Dracyan's page; it's one of the few (I think there are others) who have this exception and include 2 pictures in the box instead of one because the Japanese and Hasbro versions look quite different. This doesn't mean it requires a new tab; the tab is only done so to present separate and a large amount of information to the box e.g. character descriptions from one season, see Yamato's page, to the next or a change in character like Rudy Sumeragi's page.
The main reason we don't do the tabbed thing for all of them is that some we just don't have the picture for the Tomy or Hasbro versions; it would look uneven to have some tabbed then and others not or even have them tabbed but with a big error picture in one of the tabs because we just don't have it's picture. Also, some B-Daman are the same in Hasbro and Tomy version; you can't tab those. Either you tab them all or tab none; seeing as we can't tab them all, we tab none. In actual fact, we're only supposed to display one picture, generally the Hasbro one gets priority over the Tomy version. Also if you're going to start adding tabs for each version, what about Sonokong versions? Or just alternative versions of the B-Daman itself? Take a look at Cobalt Blade's page at the long list under Other Versions. You want to start tabbing those? It would be ridiculous.