[Mediawiki-l] Interlinking: can't indicate "iw_url" using phpMyAdmin

[Zelula X]

Hi all,

I'm preparing a wiki site with several languages (all v1.11). All
single wikis work fine individually, installations are ok, no error
reports (see http://www.iustitia.com/wiki/environment_ok.png). All
wikis use the same db with different table prefixes (es_, en_, de_,
etc.). But there is one single step that drives me crazy. As the site
is being hosted on a shared hosting, I ONLY have access to MySQL via
phpMyAdmin.

These tutorials (http://www.mediawiki.org/wiki/Manual:Wiki_family,
http://www.mediawiki.org/wiki/Help_talk:Interwiki_linking,
http://www.mediawiki.org/wiki/Help:Interwiki_linking,
http://www.steverumberg.com/wiki/index.php/WikiHelp) indicate that I
must insert a new row by clicking on "interwiki", then on "Browse",
then on "Insert", filling in these 2 "Values":

- iw_prefix = the language prefix. Example: "es" for spanish, "de" for
german, etc.
- iw_url = the URL to the sister project. Example:
http://www.iustitia.com/wiki/es/index.php/$1

But there resides my problem! I CANNOT indicate any URL at "iw_url",
because its "Type" is set to "BLOB" and not to "varchar(32)" as it
supposed to be (?). See
http://www.iustitia.com/wiki/mysql_iw_url_blob.png

Other users had the same problem (see
http://www.mediawiki.org/wiki/Help_talk:Interwiki_linking#Database_Blob)
but the link they were provided with is not solving this issue
(http://meta.wikimedia.org/wiki/Help:Guide_for_system_administrators_for_setting_up_interwiki_linking#Setting_up_interwiki_links).

So, my questions are:

1) How can I indicate the URL using phpMyAdmin (please remember that I
do not have telnet access to the server)?
2) Do I have to indicate something in the column "Function" (by
default its empty)?

Operating system: Linux
Kernel: 2.6.9-55.0.2.ELsmp
Apache: 1.3.37 (Unix)
PERL: 5.8.8
PHP: 5.2.1
MySQL: 4.1.22-standard

Any help would be greatly appreciated.

Thanks in advance!
Zelula