Yes, it looks like your msado15.dll is not properly installed and registered on your webserver.
Use this in your page and see if that fixes the problem.
C:\Program Files\CommonFiles\System\ado\msado15.dll - This is where this dll is supposed to be, but if you have insallted all your program files in other drive then better confirm the path in your system and use the same.
If you still face the error, you will have to download MDAC 2.8
and install on your server, that could fix the problem.
Hope that helps.
- Vijay G
Strive for Perfection