i need help fixing those links?

[nateads.com +]

What version of 68 Classifieds are you running?
Example: V4.1.10

What template are you using?
sigma black

Please describe in detail the issue you are having:
okay so when i updated the template i bought that lil sigma pack from template codes and i uploaded the sigma black package but when i go to test out my sit things go wrong:
some of my links arent working : userjoin,checkout,userlogout none of them are working
all of there pages comes out with (https://) with a red line through them it shows the real link please help some one i looser money by not having this site up