An easy to manage fundraising site

Probably joomla (or Wordpress)
Registers people taking part
Returns a participation code (or two - one variable one fixed)
Takes location and type of participation
Allows for regular e-mail/newsletter updates
Is secure
Has a count down to event starting
Displays number of participants number of participants
Has an "endorsement page"
Displays participants by type/region
has a blog for news updates
Take twitter feed/link to FB/social media
Easy to "clone" for different fundraising types
Fluent - really fluent - in English if not first language
Includes branding discussion for logos etc

Example - www.heroesday.org.uk - similar functionality required

Low cost as charitable events - all funds raised go to charity - but your efforts acknowledged on site - see site above