Don't bother, you are wasting your time anyway.
Windows 7 ultimate 32 bit
CS5.5 requires a 64bit operating system.
Is there any version that supports my OS?
Yes, CS4. You can, however, no longer buy it other than the versions that come with Master Collection or Production Premium for legacy support and even that may change with CS6 latest, so this is not going anywhere. The simple answer here would be to upgrade your operating system. In the meantime you can of course still try to download the CS4 trial as explained here, but after it timed out, that is that, as they say....