TFS appdata\local\temp\TFSTemp

http://support.microsoft.com/kb/935274/en-us

Extract year from date SQL

YEAR(datefield)

ajax AutoCompleteExtender cuts leading zeros

It is a known issue. " ' " needs to be added around it because of JavaScript converting this to int while passing it.

Items.Add("'" & drPart("sItemID") & "'")

See here