Date interval

MS  SQL 2000
vb.net

Hi experts
I have a question
On sql server I have this table, which contains the next columns:
ID      checkInDate      checkOutDate      sVID
1      10/14/2007      10/19/2007            2
2      10/14/2007      10/19/2007            2
3      10/16/2007      10/19/2007            1
4      10/14/2007      10/20/2007            1
5      10/15/2007      10/21/2007            2

Where is a sVID foreign key from another table.
I shuold write a Query ,Stored Procedure,Functions... This should have two parameters which are from a interval
for example.
@datOD datetime = 10/13/2007
@datDO datetime = 10/20/2007
For each date from the top interval, I have to get the next:
10/13/2007 no rows
10/14/2007
sVID      numOfsVID
2              2
1              1
where is numOfsVID number of  sVID-s
10/15/2007
sVID      numOfsVID
2             3
1             1
etc...
At the end i should have a table which looks like this one:
sVID      10/13/2007      10/14/2007      10/15/2007
2                 0                      2                     3
1                 0                      1                     1