Log into your account on Creative Cloud. In the Apps section, you will be able to locate and download the Creative Cloud desktop application. Ensure that you have cleared your cache on your browser before you proceed to install.
Go through my previous post http://forums.adobe.com/message/5418352#5418352
If you stil have problems post your query on the Creative Cloud forum.http://forums.adobe.com/community/creative_cloud
Actually, I figured out the problem.
I'm assuming you're on a 32-bit system. Flash CC isn't compatible with 32-bit arcitectures, thus, the CC manager doesn't bother showing you the trial download if it detects that you're on 32-bit Windows.
So basically, either upgrade your processor and get a 64 bit version of Windows or buy a whole new computer.