Install X2 32 version and X2 64 is still installed (questions - answered)

I installed Sonar X2 64bit for try, if my 32 plugins work. Work good. I think no need 32 version. But i am curious and i want know, what to do if i want 32bit version too.
1.) If i want install 32 version, where can i add the path for program files? Install where is 64bit installed or make seperate install?
2.) I install Sonar x2 64 first and there are some 64bit plugins installed. If i want use it in 32 bit version sonar, need i install them one more time?
3.) For shared plugins / files can i use the same path folders? I try install but when i cant change the path for 32version i cancel installation. For some reason, it give me that C:\ProgramFiles\Cakewalk
 
PS: sorry for my english

The 32-bit version should default to Program files (x86). Possibly you were mistaken on what you chose, or what the target path was...?
 
To the extent possible, I recommend keeping 64-bit blugins in the the Vstplugins folder under Program Files\Cakewalk.... and 32-bit plugins under Program Files (x86)\Cakewalk\... to aid in keeping track of of things.
 
All other shared folders must (and will automatically) remain separate. Also, the two apps will get different paths in appdata and some different branches in the registry so they remain mostly isolated except to the extent that they can scan each other's vstplugins folders and the Content path will be the same.
 
IIRC, Bitbridge can only bridge a 32-bit plugin to a 64-bit host, but the 3rd party Jbridge can bridge both directions.

You probably didn't do a full uninstall of your old version.
 
1) Completely uninstall SONAR from your computer. This is normally done from Start | Programs | Cakewalk. This will not remove any of your project files or audio data.    
 
2) Next you will want to open the Run Command     
a) In Windows XP this can be done by going to Start | Run   
b) In Windows Vista and 7 this can be done by holding down the ‘windows’ key and pressing ‘r’    

3) At the prompt type regedit and click OK.   

 ***Backup your Registry before making edits - you do this by clicking the File menu, Export Registry File.   
  
4) Now delete the following Registry keys:   
 HKEY_CURRENT_USER\Software\Cakewalk Music Software\SONAR Producer\X2 
 HKEY_LOCAL_MACHINE\Software\Cakewalk Music Software\SONAR Producer\X2    

*Please note that this will remove any effects presets and key bindings you may have made in Cakewalk. You can back these up separately if you like, using Options|Key Bindings, Tools|SONAR Plug-in Manager, and Options|Colors. Hit F1 in these views for detailed instructions on how to do this.   

5) Open the 'Run' command again.   
 
6) Copy and paste the following into the prompt:   %appdata%\Cakewalk    

7) This will open your Cakewalk Application Data folder, right-click on the SONAR folder and choose rename.   

8) Rename this folder SONAR X2 Backup.  

9) Open the 'Run' command again and type msconfig Click OK and then click on the Startup tab at the upper right of the window that opens. 

10) Uncheck all items listed, click OK, then restart your computer. You can always recheck those items again at a later time.  

11) Then reinstall SONAR. Make sure to have any virus scanners disabled on installation. It is not required or recommended to turn off any windows services.   
 
 

In practice you don't really need to do that step.
 
I've included it just for sake of completeness