You can find the patch in our centralized Download section, under the Updates section, named Icaros Desktop 1.2.5 patch 02.
Here's how to install the patch: please extract the archive wherever you like (even in RAM:) with ZuneARC, and move there with Wanderer. Inside the drawer "patch12502" you will find two files with icons, patchinfo.txt and Patch125-02: the first one includes a list of the changes applied by the patch, the other is the installer. Just double click on Patch125-022 to install everything in the right places.
Note: if you're downloading the patch with OWB, you'll find the icaros-patch12502.zip archive in MyWorkspace/Downloads drawer. To see it, remember to choose View -> All files in the Window menu of Wanderer.