There are a couple of places it could have stored the save games if you installed to Program Files. You'll have to enable
Show Hidden folders to look.
Click Start, Control Panel and select Appearance and Personalization. Under Folder Options select
show hidden files and folders. enable it by clicking the radio button, then press apply.
Click Start, Computer - double click the C drive and look in Program Data (most likely Dracula 3).
If it's not there...
Press the Windows Logo Key+R and enter Shell:AppData and press enter (this is the Run Command). On the address bar press the arrow that follows "Data" - if could be located in any of the 3 sub-folders (Local, Local Low or Roaming).
If you install to your user folders (under your UserID) the saves should be located exactly like my own.
Windows 7 protects the Program Files directory - it can only be written to by the installer (or if the program is elevated with Administrator privileges).
Edit again -
I'm reinstalling again, and just noticed that the game installs to: C:\Microids\Dracula 3 - let's see where the saves go this time... hang on one more time...
Okay -
Mine are stored in: C:\Microids\Dracula 3\Users\Profile1 -
I installed to Program files (x86)
You're running the 64 Bit edition of Windows 7 aren't you - I'm not running that version, so I don't know where they'd be stored.
Maybe someone else here has the same and can find them for you.