After careful analysis i have found the following :
more sites = higher CTR rate (i am on $0.4 per click)
this was great however until today... i haven't been able to get past the $2.51 mark.. i dont think ANY clicks are going through at the moment.
please try:
http://www.thalex.com/arcade/index.php to clearly see what appear to be fully working adverts... until you click them.

more sites = more money.
note: the CTR rate they provide is twisted, i apparently am on $1.34 for certain adverts, but at best i get $0.10 - $0.40