Radiometric Dating

[littlegrimlin1]

I was browsing the web and came across "proof" that radiometric dating inaccurate and therefore useless. Of course, this was research done by creationists...

http://creationwiki.org/Radiometric_dating

I may know to not trust this site, b/c it's probably super-baised towards creationism. I want to know the common refutes to the problems that theists seem to have with these problems...

here are some problems stated by these people:

1. Radiometric Dating: despite evolutionist claim that Radiometric dating works. This depends on Radioactive decay rates to be constant. Now the truth; Radioactive decay rates are not constant. This show by the amount of helium in both the rocks and the atmosphere.

they argue that macro evolution is not possible

2. There is no proof for Macro evolution. If you have taken the time to read this entire post, you would have seen that the 4 or 5 Atheists that have showed what they claimed as evidence, could not come up with any verifiable proof. However you are welcome to try and convince us. So tell me how can you look at the mechanical way the earth system works and be convinced it is an accident? How can the DNA that has the information in it to build an entire person or animal be an accident?

what do you all think, I am relatively low on this knowledge, enlighten me, I am only a template...