Employee Campaign and Payroll Deductions

We're getting ready for our Annual Employee Campaign, and wanted to provide an option through Online Express. Most employees donate through bi-weekly payroll deductions. 


The specific issues i'm seeing are that the pledge option does not provide for bi-weekly payments. Which is curious, because it does offer up to 26 payments. Also, we'd like to make the options a one-time deduction or 26 bi-weekly deductions only through the bill me later option. There doesn't see to be a place to set this, there is just the pull down shown in the "Fine Tuning" tab.


Any thoughts or ideas would be greatly appreciated.


Thanks, Ken