Hello,
I'm Designing sql server 2005 SSIS Packages.
According to my requirment i have a sequence container. It has few data flow task, on success of one next one is running. If any one of them get failed then it should roll backed all the transaction. Each Data flow task transfering a data from one server to another server in similar table.
Thanks.

SSIS: Roll Backed Data transfer task
msdnuser06
G20
Transactions are covered quite well in Books Online, and here are some other links to articles on transactions.
Native Transactions
(http://wiki.sqlis.com/default.aspx/SQLISWiki/NativeTransactions.html)
Transactions in SQL Server 2005 Integration Services
(http://www.sqlservercentral.com/columnists/jthomson/transactionsinsqlserver2005integrationservices.asp)
SQL Server 2005 Integration Services - Transaction Support - Part 25
(http://www.databasejournal.com/features/mssql/article.php/3606681)