New Cleaner 2.21.940 error lang\lang-1031.dll

My husband dl'ed the latest version last week. After that install the Uninstall disappeared off the Uninstall/all programs. Vista shows it as being on the computer in documents but it will not go back to the uninstall list nor will it uninstall. Today I tried to upload the latest version thinking that would put it back on, but instead it had error lang\lang 1031.dll and then error lang\lang-1041.dll. I haven't a clue as what to do with it now... It says it is updated to the current version though I know it isn't as I aborted the dl after the first error both times.