PJG Recovery have a free online advice channel at www.debtadvicetv.com. If you are ready to ask us for specific advice or help, then get in touch at www.pjgrecovery.com/contact-us.asp . I look forward to speaking to you.
As others have already said, all of those companies are pretty supportive of IVAs in my experience - but you do have to make sure that you are putting your best offer forward in the first place to guarantee success.