This below has shown on XOOPS home page. This likes to quote module but it's more extendable and can show more than two sentences!?

Is this some kind of module or it is part of XOOPS instalation files?

( Welcome to XOOPS official website!
XOOPS is a dynamic OO (Object Oriented) based open source portal script written in PHP. XOOPS is the ideal tool for developing small to large dynamic community websites, intra company portals, corporate portals, weblogs and much more.

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If you are using the cache feature, clear cached files periodically by updating the general preferences in "system admin" => "preferences" for better performance. )

Thanks ...

It is a custom block that contains static html. You can create these types of blocks from the admin menu by selecting blocks from the System menu.

It is a custom center block. You can create your own.

OK! Thanks, that helps ...