Help with tags and seo mod on Elgg

Hi not know where to go for this post I speak Spanish I do not understand English very well in the end.

the problem is with the tags on my network Elgg as the greatest of my content is in the groups and do a search in the search Elgg only I get the results of the keyword tags and blog groups but not the content of groups, thus losing interest in the Web for users who do not find the content.

Another problem here is that if there seo mod please hiziera me know where I can download it for my pages are indexed n.

Espro thank you very much your help.!.