change forum to UTF-8 or install from scratch with UTF-8 U_U"

[Khriz]

I recently I have installed my forum, has some changes, style created by me,
some products and other configurations. You have No users, No threads, No post.

need to migrate to utf-8 to use a certain application wiki

vBulletin diagnosis shows me:

character_set_client latin1
character_set_connection latin1
character_set_database latin1
character_set_filesystem binary
character_set_results latin1
character_set_server utf8
character_set_system utf8
character_sets_dir /usr/share/mysql/charsets/
collation_connection latin1_swedish_ci
collation_database latin1_swedish_ci
collation_server utf8_general_ci

and phpmyadmin the query: [SHOW VARIABLES LIKE 'char%']
show me:

character_set_client utf8
character_set_connection latin1
character_set_database latin1
character_set_filesystem binary
character_set_results utf8
character_set_server utf8
character_set_system utf8
character_sets_dir /usr/share/mysql/charsets/
__________________________________________________ ______-

I'm doing tests with a script
I provided and change the collation of the database as follows:

and phpmyadmin the query: [SHOW VARIABLES LIKE 'char%']
show me:

character_set_client utf8
character_set_connection utf8
character_set_database utf8
character_set_filesystem binary
character_set_results utf8
character_set_server utf8
character_set_system utf8

it seems that everything works fine
when I create themes with characters such as: (ñàèìòùâêîôû) in the web address (url) I appear like this: (% E0% F1% E8% EC% F9% F2% E2% EA% EE% F4% FB)
but I see it functional, I guess that would mend vBSEO.

but I'm using the Spanish language: ISO-8859-1
and administering languages ​​/ edit configuration / HTML Character /
I have to default to ISO-8859-1
Okay?
or there is another change I should do?

Spanish language should use a utf-8? Character to HTML /
default to utf-8?

I have configured the url rewrite mod
as it should now be configured?