second-level analysis interpretation

Dear Alfonso and Conn community,

I'm a little confused about the output from a ROI-to-ROI analysis I ran.

(1) The following contrast [0 0 0 0 0 1] intend to see if there's a correlation positive between an isolated covariate and the connectivity between a ROI and the rest of the brain.

(2) If I understand it right, when I change the sign of the contrast [0 0 0 0 0 -1] and switch from one-sided contrast positive to negative, I will still get the same result. This only flip the sign of the beta and the T-statistic.

(3) Correct me if I'm wrong, but if I change the sign of the contrast to negative, but leave the one-sided contrast in positive, will I be looking instead for anticorrelations?

(4) My concern is about plotting my results in the 3Dviewer. Sometimes, in a positive contrast although in the preview all dots are red, I get red and blue nodes in the 3Dviewer (image 2). Am I getting both (red-nodes)correlations and (blue-nodes)anticorrelations?

I import the results (which by the way, are they the model-fitted time-series?) to plot them on SPSS with my covariate of interest and see the directionality and ease the interpretation. 

I'd really appreciate any kind of response.

Regards,
J