Hi Bexter
To be honest, there aren't that many offering sponsorship for those under 30...Unfortunatley, if things do get better I don't think airlines like to take on cadets under 28.
A few airlines have a policy of not taking on low hours non-type rated pilots below 30 even if they have a frozen ATPL. Sounds bad, I know but it's to do with the risks associated with training old guys apparantley.
That said, many have made it well up to the age of 45 I've heard.
Rgds