A quick question

Can you confirm whether the script is receiving the file but can't store it or it just does not recieve the file at all.

If you are receiving the file but it is not possible to save it $filename=~s/\s/_/g; or even just use a $filename='lastupload.data'; to see if it is the spaces in the filename on the server that are causing the issue.

Hope this helps
UnderMine