Basic PS version

Responders have been very helpfull with questions on this forum so I wonder if I could impose once again with the following.

I like manipulating photos / fixing negatives / touching up photos / red eye / creating panoramas /one touch color enhancements /and the tools that PS 7(10yr old version) has. It has been pointed out that PS4/5/7( Old ver) is not supported anymore.

I don't want to buy CS6 (700$) at this time and my budget is limited so I wonder if some one could advise me which is the best program that would be like PS7 or if the lesser version of PS would be right for me.

Thanks for reading this...Jeff