If no one can find something for you, you can log into verizonwireless and set some controls that will block up to 5 numbers for a few months at a time. If you get the subscription, it'll lock them out forever, but if not, you just redo the number blocks every month or so.
Thank you for the suggestion but I'm on a business phone which means its more difficult to block a number through verizon. Besides, I want to be able to block someone for a few hours and easily unblock if I fight with parents or girlfriend
only way is to root your phone then there is a app that will do what you want but other than that the phone stock wont let any app mess with that part of the phone.cm7 has a blocker in itself that can do it, but then again you need to be rooted.
If you get unwanted calls, you can choose to send the caller directly to voicemail, treat all calls from a particular number as spam, or block the caller. Follow these steps:
Almost all of the 2.1/3.0 ROM's have the capability to add and remove people from the blocked caller list. Don't think those dialers will work on Skyraider but you can try