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There are several great software both online and commercial for antibody microarrays. Microarray Station
has a great collection of microarray software.
Depending on what scanner you are using and also what chip, you could use most software that is free. Also generally, antibody microarray experiments can use software from DNA microarrays.
I would specifically recommend Antibody Microarray Protocol
For final biological analysis of antibody microarray data I would use: ArrayXPath
a web-based service for matching microarray gene-expression profiles with known biological pathways. Array Prospector
ArrayProspector is a set of predicted functional associations between genes that have been inferred from microarray expression data