If you don't wait till next beta (that already features the new logo as seen on a screenshot in another thread on this forum) there's a step-by-step guide to patch your SS with the new logo by yourself today:
1. Right click
here, select "Save Target As..." and save the icon somewhere on your disk. I composed this icon from images in the logo contest gallery.
2. Download Resource Hacker from
http://www.angusj.com/resourcehacker/.
3. Open SS's executable (salamand.exe) in Resource Hacker, from the tree on the left select Icon Group/960/1029, right click it and select "Replace Resource...".
4. In the dialog press the "Open file with the new icon" button and browse for the icon saved in the first step.
5. Press the "Replace" button, save the file and exit Resource Hacker.
6. Run your favorite file manager with fresh new icon
NOTE: I suppose this won't be officially supported by guys from ALTAP
