We were notified of the issue with Safari 3 detection code in .NET edition which resulted in run-time error everytime someone using Safari 3 visits your page with SPAW. We issued a fix for it back in April but with all the server troubles forgot to update the download page and post to the blog about it.
Better later than never. Download the hotfix release from SPAW Editor’s download page.
You only need to overwrite Bin\Solmetra.Spaw.dll in your 2.0.7 installations.