Hi, it's me again with UL/DL plugin...

I'm using loadVariables to send variables online to our database, but it seems like it doesn't work if my complete URL with variables is longer then 257 chars?
I get klErrors -4 and -15, what do these mean?
Also, when sending is successful and my variables get written in our database I get klError -4!?
Is it possible to send a longer string then this?
Any info will be helpful...
Cheers,
Alen
EDIT
I browsed trough the forum a bit, this problem seems similar to this post:
http://forum.kuneri.net/index.php/topic,68.0.htmllimitation of GET method, is it possible to use POST in this case?