LightningStrikeThank you archie and Tob, the problem that i have is that the crosshair is not correctly shown like the video i mentioned, it just looks fully green. im also using 4:3 stretched if thats the case. And, yes i did everything like both of you suggested. I also tried the 'crosshair5' method, but it didnt really work, the green part shows up including the white dot. which makes it very bad.
Just to make sure I made my own version of Thalash Seeker using Leth's Seeker as a base (recolored the dot green, kept the wings white)
https://www.dropbox.com/s/1u3fa4xaxi549r9/thalash_seeker.vtf?dl=0
Like Jynxii pointed out you need to have your crosshair color settings on full white as well (this preserves the colors of the VTF). So try that first. If you set your current Seeker to white and it goes full white then replace it with mine (rename mine to Seeker and throw it in the Thumbnails folder)