Can't install plugin - no install image

[roxana]

Here's screen from my admin panel: http://i53.tinypic.com/i1du83.jpg
I just dont have plugin_install.png image in my browser (it's not clickable either), but this image is uploaded into my gallery folder: photos/images/icons/plugin_install.png

I tried to use put url - alicia-keys.net/photos/pluginmgr.php?op=delete&p=big_pop_up&form_token=4230bf997712eff51d7f6a4ea72a0e17&timestamp=1295125214 but I don't know anything tokens and all that.

My website is http://www.alicia-keys.net/photos
Thanks for help!

[roxana]

I was in the middle of upgrading css (from 1.4 to 1.5), when I updated and uploaded istyle.css into my theme folder all problems are gone.