There isnt a particular "training" that I would recommend but there are some base skills that translate into most coordinator positions...the main thing is being very very good with computers. That may sound weird, but if have trouble typing, working and trouble shooting software and working basic programs, then take some type of computer courses. Many junior colleges offer basic computer classes as well as advanced Excel, Word, and Outlook classes.
At the very least you should be able to work a power point presentation, make do a mail merge in Word and update formulas in Excel.
Also, good customer service skills are a must. Some companies can actually offer this type of training once you are hired.