Problems uploading images

Hi everyone and congrats Nick for this great application.

Before installing it in a server I'm testing it on my computer and I'm having problems while trying to upload images to attach them to resources. I search for an image and after clicking on 'Update' the task seems to be hooked and I have to cancel it.
I've read the instructions about granting permissions to the folder and I thought that I had done it correctly but... well I suppose there is somenthing wrong.
I've installed Wampp and then phpScheduleIt in the folder 'htdocs' so I don't think that I have to change anything in the config.php file. These are the settings I have:
$conf['settings']['image.upload.directory'] = 'Web/uploads/images';
$conf['settings']['image.upload.url'] = 'uploads/images';

And this is the path where 'images folder' is in my pc:
C:\xampp\htdocs\phpScheduleIt\Web\uploads\images

About authorization I've granted permission to the user 'Everyone' (sorry maybe is not the right translation for it) even at 'phpScheduleIt' folder level but it doesn't work. Any suggestion?
Thanks,