my @tables = ('AUDT_AuditChrt','AUDT_AuditMedication');
[download]

Hey it worked, below is what it spit out:

TopsData:dbo:AUDT_AuditChrt:AuditChrt_ID:1:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditChrt:AuditChrt_RecordState:2:
CREATE DEFAULT D_Zero AS 0

:NO:tinyint:::3:10:0::::::::TopsData:dbo:T_RecordState:
TopsData:dbo:AUDT_AuditChrt:AuditDgphAlias_ID:3:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditChrt:AuditDgphType_ID:4:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditChrt:Login_ID:5:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditChrt:AuditChrt_Description:6:
CREATE DEFAULT D_EmptyString AS ''

:NO:varchar:400:400:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS::::
TopsData:dbo:AUDT_AuditChrt:AuditChrt_Update:7:
CREATE DEFAULT D_Boolean AS 0

:NO:bit:::::::::::::TopsData:dbo:T_Boolean:
TopsData:dbo:AUDT_AuditChrt:AuditChrt_RecordID:8:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditChrt:AuditChrt_TimeStamp:9::YES:datetime::::::3
+::::::::::
TopsData:dbo:AUDT_AuditChrt:AuditChrt_RowGuid:10:(newid()):NO:uniqueid
+entifier::::::::::::::::
TopsData:dbo:AUDT_AuditChrt:Patient_ID:11:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditChrt:AuditChrt_Workstation:12:
CREATE DEFAULT D_EmptyString AS ''

:NO:varchar:40:40:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS::::
TopsData:dbo:AUDT_AuditChrt:AuditReason_ID:13:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:AuditMedication_ID:1:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:AuditMedication_RecordState:2:
CREATE DEFAULT D_Zero AS 0

:NO:tinyint:::3:10:0::::::::TopsData:dbo:T_RecordState:
TopsData:dbo:AUDT_AuditMedication:AuditDgphAlias_ID:3:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:AuditDgphType_ID:4:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:Login_ID:5:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:Pharmacy_ID:6:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:AuditMedication_Description:7:
CREATE DEFAULT D_EmptyString AS ''

:NO:varchar:400:400:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS::::
TopsData:dbo:AUDT_AuditMedication:AuditMedication_Update:8:
CREATE DEFAULT D_Boolean AS 0

:NO:bit:::::::::::::TopsData:dbo:T_Boolean:
TopsData:dbo:AUDT_AuditMedication:AuditMedication_RecordID:9:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:AuditMedication_TimeStamp:10::YES:da
+tetime::::::3::::::::::
TopsData:dbo:AUDT_AuditMedication:AuditMedication_SendMethod:11:
CREATE DEFAULT D_Zero AS 0

:NO:tinyint:::3:10:0:::::::::::
TopsData:dbo:AUDT_AuditMedication:AuditMedication_RowGuid:12:(newid())
+:NO:uniqueidentifier::::::::::::::::
TopsData:dbo:AUDT_AuditMedication:Patient_ID:13:
CREATE DEFAULT D_TableKey AS '0000000000'

:NO:char:10:10:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS:TopsData:dbo
+:T_TableKey:
TopsData:dbo:AUDT_AuditMedication:AuditMedication_Workstation:14:
CREATE DEFAULT D_EmptyString AS ''

:NO:varchar:30:30:::::::iso_1:::SQL_Latin1_General_CP1_CI_AS::::
[download]

OK now what does this mean in terms of my issue?

If you look at your schema you are trying to select rows based on a timestamp but the column AuditChrt_TimeStamp is a char(10). That is not going to work.

The very first snippet of code you showed was binding '2013-08-01 00:00:00.000' which is also way too big for a char(10). I incorrectly assumed you actually had a timestamp column. In the future it sould save time if you provided the schema at the same time.