A lot of us are getting these washable pads - though I dont have mine yet, but others say they are great:
http://www.valethics.com/buy-recl-pads.htm
I have a male maltese who could not be trained either. Although, I never tried keeping him in his crate for very long. Though it didn't matter, when I returned he'd have urine and feces everywhere! I know its frustrating! So-the crate didn't work for him. I had to keep him literally by my side in the house (he would also lift his leg!) and frequently take him outside. At night, I had to put his leash on him, in his bed, right beside my side of the bed, in order to "trust" he would not get up and be naughty!
I am hoping you have better luck with an xpen, if you decide to try that - however my dog would climb over mine

So you may have to find one that he can't climb.....
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God Bless our troops

R.I.P. Sweet Lexxi Girl - you were taken too soon, we love you always
Vixxen ,
Truffles ,
Gemma Lexxi and their mommy Trina- Girls Rule!