Upgrading Drupal

Hi! I've posted this problem in the german board at drupalcenter.de, but nobody seems to have a solution or a guess.

After updating from 4.7.1 to 4.7.2 no pictures are shown anymore. (I've got the modules img_assist and nodeimageblock). The files are present in the HTML sourcecode. If I try a direct call of a picture-URL I get the error: "Forbidden You don't have permission to access /files/xyz.jpg on this server."

I get this error whenever I view the forum and any commented node:

Through the past twenty four hours I've had an upgraded version of 4.6.6 and 4.7.2 running and I cannot get rid of the following message in either of them:

Hi friends,
I am running drupal-4.6.6 and I need to upgrade to 4.6.8 version. My question is:
Must I upgrade to 4.6.7 version first or 4.6.8 directly??

thanks a lot.

regards

richardv

Hello, After a VERY careful upgrade from 4.6.3 to 4.72, the following errors were generated by the upgrade.php script:

This drupal running-update page says:

The update script should only be run once, it will complete all the updates at once. When prompted for which version, choose the closest starting version that makes sense for you :

But is that closest before or after the changelog.text date? Or should one pick the exact date that is listed on Changelog?