'filesize' error when editing file on offline server

Hello.

I’ve just downloaded your plugin and, where it has everything I need, I get the following error message when editing an uploaded file:

Warning: filesize(): stat failed for C:wampwwwpartnership/wp-content/files/agm-minutes/BCP_AGM_Minutes_Sep2007.pdf in C:\wamp\www\partnership\wp-content\plugins\wp-downloadmanager\download-manager.php on line 142

I noticed how the backslashes in the initial directories on my computer have disappeared and, as such, must’ve escaped themselves within the actual code. I just thought I’d point this out.

http://ww.wp.xz.cn/plugins/wp-downloadmanager/