Just trying to mirror a board...

I have a text file loaded with the following lines:

<http://forums.skylinesdownunder.co.nz/showthread.php?threadid=10&perpage=1000>
<http://forums.skylinesdownunder.co.nz/showthread.php?threadid=11&perpage=1000>
<http://forums.skylinesdownunder.co.nz/showthread.php?threadid=12&perpage=1000>

and so on till the threadid=7000.

Well I am using the "Download web site option" with 
the following rules: -* +*.png +*.gif +*.jpg +*.css 
+*.js

It works fine until it comes to the 840 file..... and 
then the following in the log (and no i didn't stop 
the download)....

23:54:31 Error:  "mirror stopped by user" (-1) at link 
forums.skylinesdownunder.co.nz/showthread.php?threadid=840&perpage=1000 (from
primary/primary)
23:54:32 Error:  "mirror stopped by user" (-1) at link 
forums.skylinesdownunder.co.nz/showthread.php?threadid=841&perpage=1000 (from
primary/primary)
23:54:32 Error:  "mirror stopped by user" (-1) at link 
forums.skylinesdownunder.co.nz/showthread.php?threadid=842&perpage=1000 (from
primary/primary)
23:54:32 Error:  "mirror stopped by user" (-1) at link 
forums.skylinesdownunder.co.nz/showthread.php?threadid=843&perpage=1000 (from
primary/primary)
23:54:32 Error:  "mirror stopped by user" (-1) at link 
forums.skylinesdownunder.co.nz/showthread.php?threadid=844&perpage=1000 (from
primary/primary)
23:54:32 Error:  "mirror stopped by user" (-1) at link 
forums.skylinesdownunder.co.nz/showthread.php?threadid=845&perpage=1000 (from
primary/primary)

any reason why?
regards,

Virantha