please translate this sentence

Kindly arrange to extend (postpone?) the show to end of April 2008, we guarantee a tremendous show will be performed by then.
I believe you mean extend(延長,延伸) & not postpone.

Plese (postpone / defer / put off) the performance to the end of the April which will be a (brilliant / splendid / wonderful ) performance.

Postpones the performance to 4 end of the month please, it will be a
splendid performance!