More than 600 runners, walkers and joggers helped raised $90,000 for cancer research - joing the $490 million that's been donated

-- "Hero's legacy lives on" in Vancouver 24 hours on September 14, 2009

Firstly, I would like to know Vancouver 24 hours' opinion on the difference between running and jogging. Secondly, it's either raised $90,000 or helped raise $90,000. Thirdly, the choice of the word joining here makes me feel unsettled; replacing it with adding to might make me feel settled.