Upload folder in App_Data and Log file?

I check Upload folder in App_Data and realize that it take up > 1GB. Can I delete this folder without damage other think. 
And is there a log file in FileVista. If not it should include one in next version. Sometime our customer delete all files in their folder but they calm that we deleted that.
Thank you for such a good web app.

Yes, you can delete those temporary files within the folder but not the folder itself. Starting with v2.9, upload module is vastly improved and upload folder is not required anymore.

In v3.0 that we have released recently, event logging (audit trail) feature is added. I highly recommend you to upgrade to the latest version.

Thank you! I'm waiting for your ver 3.0.

Actually we have already released it on April 4th. I have sent you the download link for a trial copy via email.

Thank you!