Hi jmach,
I see from past posts that Gordon has answered your query about this previously. You cannot claim IR ESA if your wife works for more than 24 hours. It may be that there is something else you can claim but we do not deal with other benefits. I suggest that you either contact CAB or look at an on-line calculator, we recommend 'turn2us' for a start
www.turn2us.org.uk/ 24 hour work rule for ESA(IR) Payment will recommence if you are assessed and placed into the Support Group at any stage in the future.
12 Month Limit for ESA(CB)