Hi,
Thanks Bucklash, you're right.
@JesseHammil, you need to use a field to filter content types (standard free storage, cck field, table #_cck_core). Search the field called "cck". With this field you will be able to say SEBLOD in which content types you want to search. About "in which field" you want to search you can easily all Joomla common fields such as title, created date.. the search generic field (see this product on market place).
There are a lot to say on this topic such as to used the SEBLOD common table to have some common custom fields between different content types, which will increase search performance.
Thanks.