Here are two methods:
First method:
1. Make an empty folder and install to it.
2. During the install, uncheck all the icon creation boxes and provide a fake, nonexistent start menu folder name.
3. After the install, create your own shortcut to the v.1.5.2.335 version and give it a unique name so you can tell it apart from the v.1.5.2.337 version.
Second method:
1. Make an empty folder and prime it with your license.xbin and MainSettings.dat copied from the v.1.5.2.337 folder. Then install to it.
2. and 3. Same as method one.
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Method one has its own PT subdirectories.
Method two shares certain directories (Backups, Settings, Tasks, Snapshots, Cache) with the v.1.5.2.337 install.
Look at these end result screenshots -- they show what each method "looks like."
Good luck ...