Help with these warnings please.....

[chrisj]

Upon uploading on my web page I received these:

Warning: fopen(upload_log.txt) [function.fopen]: failed to open stream: Permission denied in C:\Inetpub\wwwroot\http\upload1.php on line 49

Warning: fwrite(): supplied argument is not a valid stream resource in C:\Inetpub\wwwroot\http\upload1.php on line 51

Warning: fclose(): supplied argument is not a valid stream resource in C:\Inetpub\wwwroot\http\upload1.php on line 52

Can you tell me what they mean and how to remedy them?

Thanks.

[andrew1810]

Your script doesn't have permission to open C:\Inetpub\wwwroot\http\upload_log.txt

The other two errors are just because it didn't open the file at the start