Problem Installing Label Factory on Windows 7 Computer

I have been so desperate in finding a solution regarding my issue with installing Label Factory Deluxe 3.0 on my computer. There’s always an error message when I try to install the program. This is the error message: "Error 1303. The installer has insufficient privileges to access this directory: C:Documents and SettingsAll Users. The installation cannot continue. Log on as an administrator or contact your system administrator." I contacted the company’s support where I purchased the software and told me that the problem could be with the installed disks. It could be corrupted so they gave me a new one. Still I have the error message.
I tried to access C:Documents and SettingsAll Users and logged in with administrator privileges but get this error instead "Access is denied." I really need to install on my computer as soon as possible. So please help me. Anyway, I run my computer on Windows 7 Home Premium. Thanks.
