ESidebar's code are so f... ugly... btw:
If you're using HTML blocks (especially <li> tag), you could notify that 1.5.0 broke your footer. Here's how to fix this:
Go to Plugins -> Modules, find module "sidebar_global", edit it:
Find
PHP Code:
$fullblocks = explode('<li>',$sidebar_str);
Replace with
PHP Code:
#$fullblocks = explode('<li>',$sidebar_str);
# fix by Arhivarius @ Forum-Grad
$fullblocks = preg_split("/<li>\s+<div class=\"block/i", $sidebar_str);