Notes Software

"No Such Interface supported" error for windows 7 how can i fix this? ok here's the events before i got the error, it all started because i want to change my themes in windows 7 on my laptop so i search in the net how, finally i found some cool looking themes in deviantart.com so i downloaded one to try them out, together with the downloaded file contains instructions on how to install them, it was going fine up until i try to change my start menu button, it requires me to take ownership and edit the explorer.exe and change theassignedd images to the custom one that i want.. so after doing that i wasuccessfulll in changing the button but now cantat run my applications and i cant even open up any of my browsers (google chrome and IE), when i try to run my sticky notes it says "Cant Open this item; It might have been moved,renamed, or deleted. do you want to remove this item?" it always says this whenever i run my applications; oh and when i double click any shortcuts of applications in my desktop idoesn't't respond. plz i hope somebody has experience this and has a solution my guess is there are some missing paths in the regestry but i cant open my regedit so i cant verify this..