Errors when installation additional languages

hi all
i have mmosite.cz
I tried to install addition lanaguage [cz]
first I get errors about all that new fiels cant be writeable
" Failed to install language packages for [almost all new language files] because the following files/directories could not be modified "
( all modules/ and themes/ are 777)

now after removing and trying to install again I get:

Error (ERROR_PLATFORM_FAILURE) : '/home/www/mmosite.cz/www/themes/ajaxian/po/cs.mo' doesn't exist.

* in modules/core/classes/GalleryRepositoryUtilities.class at line 554 (GalleryCoreApi::error)
* in modules/core/classes/GalleryRepository.class at line 997 (GalleryRepositoryUtilities::verifyPackageIntegrity)
* in modules/core/AdminLanguageManager.inc at line 336 (GalleryRepository::downloadAndUnpackPackages)
* in modules/core/AdminLanguageManager.inc at line 151 (AdminLanguageManagerController::_downloadAndInstallLanguagePackages)
* in ??? at line 0 (AdminLanguageManagerController::updateLanguageSettings)
* in modules/core/classes/GalleryTemplateAdapter.class at line 1092
* in g2data_879879/smarty/templates_c/%%3979927725/matrix/%%3A^3A8^3A818B59%%theme.tpl.php at line 77 (GalleryTemplateAdapter::trailer)
* in lib/smarty/Smarty.class.php at line 1255
* in modules/core/classes/GallerySmarty.class at line 61 (Smarty::fetch)
* in modules/core/classes/GalleryTemplate.class at line 241 (GallerySmarty::fetch)
* in main.php at line 506 (GalleryTemplate::display)
* in main.php at line 104
* in main.php at line 88

I have:

Gallery URL = http://mmosite.cz/main.php
Gallery version = 2.3 core 1.3.0
API = Core 7.54, Module 3.9, Theme 2.6, Embed 1.5
PHP version = 5.2.6-1+lenny3 apache2handler
Webserver = Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny3 with Suhosin-Patch
Database = mysqli 5.0.51a-24+lenny1, lock.system=flock
Toolkits = Gd, Exif, Thumbnail
Acceleration = none, none
Operating system = Linux rajce 2.6.26-2-amd64 #1 SMP Sun Jun 21 04:47:08 UTC 2009 x86_64
Default theme = matrix
gettext = enabled
Locale = en_US
Browser = Mozilla/5.0 (Windows; U; Windows NT 6.0; cs; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729)
Rows in GalleryAccessMap table = 223
Rows in GalleryAccessSubscriberMap table = 1412
Rows in GalleryUser table = 22
Rows in GalleryItem table = 1408
Rows in GalleryAlbumItem table = 63
Rows in GalleryCacheMap table = 0

thanks - rest of gallery works OK.

No it not. I think its because first time when I tried installation, it write
Failed to install language packages for [...] because the following files/directories could not be modified "
to all language files that was in that package.

but even after OK uninstalling, still get that first error about platform errorr

lol. Uninstalled and now it wrote
Error (ERROR_PLATFORM_FAILURE) : '/home/www/mmosite.cz/www/themes/carbon/po/cs.mo' doesn't exist.
+ all that other mess..

yes Carbon is next to Ajaxian :-D so i tried uninstall all themes I dont use.. and now
Error (ERROR_PLATFORM_FAILURE) : '/home/www/mmosite.cz/www/themes/matrix/po/cs.mo' doesn't exist.

yes Im using matrix :-D
when i tried make empty cs.mo I get this
Error (ERROR_PLATFORM_FAILURE) : Size of '/home/www/mmosite.cz/www/themes/matrix/po/cs.mo' did not match package descriptor.

i tried install another language pack. its same. so I want ask if there is chance to download and install manually?

ok thx