http://www.computerchess.org.uk/ccrl/404FRC/ (FRC 40/4)
Please note that the three lists are updated separately to each other.
The links given in each update report will give you the currently up to date lists.
The links to the various rating lists can be found just beneath the default Best Versions list (as in this screenshot). Specific 32-bit rating lists are denoted as such to the right of the default list in each category. The default lists contain the 64-bit engines.