Designing Data Entry Form With Scope_identity .....help

hi i'm thinking of putting 3 texboxes for the user to enter their previous work exp which look something like this:

experience
First job.textbox
Secondjob.textbox
Thirdjob.textbox

i'm kinda confuse on with the database. The 3 tables required means i will hav 3 sqldatasource ....
which i didin't quite get it right with the Secondjob table.I try using identity_scope() and @@identity to get the ID from my first table(personel)
which is autogenerate number. It works fine with Firstjob table but not secondjob table.

Generated error message:

(1 row(s) affected)

(1 row(s) affected)

Msg 547, Level 16, State 0, Line 6

The INSERT statement conflicted with the FOREIGN KEY constraint "Personnel_Secondjob". The conflict occurred in database "test", table "dbo.Personnel", column 'IDPersonnel'.

The statement has been terminated.

INSERT INTO dbo.Personnel

(Name)

VALUES ('Jon')

insert into Firstjob(Designation, Employer, YearWorking, IDPersonnel)

values('Teachier, 'Gam', '7thn', scope_identity())

insert into Secondjob(Designation, Employer, YearWorking, IDPersonnel)

values('Musician', 'KKSB', '8thn', scope_identity())

 any suggestions....