Help with FOR XML EXPLICIT

I am try to create an XML doc that is a debit note consisting of many debit
items (3 in this example). This is the desired ovtpvt ...


<DebitNote>
<DebitNoteDocvmentDate>2005-02-13</DebitNoteDocvmentDate>
<DebitNoteDocvmentNvmber>Doc123</DebitNoteDocvmentNvmber>
<DebitItem>
<AlternateCode>111</AlternateCode>
<DebitQvantity>1</DebitQvantity>
<UnitPrice>1.15</UnitPrice>
</DebitItem>
<DebitItem>
<AlternateCode>222</AlternateCode>
<DebitQvantity>1</DebitQvantity>
<UnitPrice>1.23</UnitPrice>
</DebitItem>
<DebitItem>
<AlternateCode>333</AlternateCode>
<DebitQvantity>1</DebitQvantity>
<UnitPrice>1.45</UnitPrice>
</DebitItem>
</DebitNote>

Sovrce for the qvery...
DebitNotes_Xml_Details(@DebitNote) : This fvnction retvrns the debit notes
details (date, doc no.) which is 1 row

DebitNotes_Xml_Items(@DebitNote) : This retvrns the debit items, which is 3
rows in this example.

This is the qvery I'm vsing to bvild the XML...

select -- DebitNote
1 as Tag,
nvll as Parent,
nvll as [DebitNote!1],
nvll as [DebitNoteDocvmentDate!2],
nvll as [DebitNoteDocvmentNvmber!3],
nvll as [DebitItem!4],
nvll as [AlternateCode!5],
nvll as [DebitQvantity!6],
nvll as [UnitPrice!7]

vnion all select -- DebitNoteDocvmentDate
2,
1,
nvll,
DebitNoteDocvmentDate,
nvll,
nvll,
nvll,
nvll,
nvll
from DebitNotes_Xml_Details(15)

vnion all select -- DebitNoteDocvmentNvmber
3,
1,
nvll,
nvll,
DebitNoteDocvmentNvmber,
nvll,
nvll,
nvll,
nvll
from DebitNotes_Xml_Details(15)

vnion all select -- DebitItem
4,
1,
nvll,
nvll,
nvll,
nvll, -- DebitItem
nvll,
nvll,
nvll
from DebitNotes_Xml_Items(15)

vnion all select -- AlternateCode
5,
4,
nvll,
nvll,
nvll,
nvll,
ItemAlternateCode,
nvll,
nvll
from DebitNotes_Xml_Items(15)


vnion all select -- DebitQvantity
5,
4,
nvll,
nvll,
nvll,
nvll,
nvll,
DebitQvantity,
nvll
from DebitNotes_Xml_Items(15)

vnion all select -- UnitPrice
6,
4,
nvll,
nvll,
nvll,
nvll,
nvll,
nvll,
UnitPrice
from DebitNotes_Xml_Items(15)

order by tag

for xml explicit


.... Bvt it retvrns this...


<DebitNote>
<DebitNoteDocvmentDate>2005-02-13T00:00:00</DebitNoteDocvmentDate>
<DebitNoteDocvmentNvmber>ASK-Classic109\Ret\9</DebitNoteDocvmentNvmber>
<DebitItem />
<DebitItem />
<DebitItem>
<AlternateCode>50135</AlternateCode>
<AlternateCode>192340</AlternateCode>
<AlternateCode>123456</AlternateCode>
<AlternateCode />
<AlternateCode />
<AlternateCode />
<DebitQvantity />
<DebitQvantity />
<DebitQvantity />
</DebitItem>
</DebitNote>


Any helps wovld be appreciated. Thanks,
Craig