Just wanted to say that I got it working again.
It's just that something went wrong with the folder rights.
I probably had the DNN portal secured too much, I followed the steps for directory right management as described on
this site, but it doesn't describe necessary directories (atleast for DNN 4.3.2) like the js (javascript folder????) which appears to be in need to have read/write settings selected.
I now have the site setup and didn't concern about any securing when it comes to folder rights, so I only setup a site with complete rights.
Well atleast it's working now, but I just want to add that I setup a new SQL database, so I was able to copy/paste the posted texts inside my old site, except that you're having to edit these texts, because in SQL server there are tags that are not HTML tags or are not converted back into html tags when copied.
I hope that by posting this message I can help others that have the same problem and I just want to add that it worked for me, even when I needed a little help, but that's what these forums are all about