The filter module, by default, uses a tabular layout for the filter fields and their labels. This may not suite your site. This article describes how to change this to an alternative presentation.
Simply create a file templates/{YOUR TEMPLATE}/html/mod_jevents_filter/default_layout.php with the content of this sample file.
Then edit the layout to suit your site - the file is quite simple to understand but if you have any questions please follow up in the club forums.
Geraint