Check to see where the title blocks have been installed to; they should have been installed to the folder that contains the symbols shown under My Libraries. This is usually, for example,
C:\Program Files\Stardraw.com Ltd\Stardraw AV 2007\My Symbolsbut you might find the Title Blocks have been installed somewhere else, e.g.
C:\Program Files\Stardraw AV\My Symbols
You can check to see where they should be by running Stardraw and selecting Options | Library Directories. the desired folder is shown under My Libraries. Move the Title Blocks to that folder and then select Options | Refresh Libraries.
I hope this is helpful.