I have repackaged many exe setups before and made them msi files using Wise Setup Capture (depending on your ds version it should be located \eXpress\Wise Packager) This can sometimes be easy and complicated depending on the software. Anything with services or drivers that are installed seem to be one of the difficult ones, just need a little tweaking once done.
You could try this with aclient.exe, I have never tried it with aclient install myself, but for no reason should it not work. Just make sure you check the service parameters are set right using WfWI.exe (Wise MSI Editor).
Basically with this sort of thing you just need to have a go and work it out through trial and error. Hopefully Symantec will make things easier in the next release.
Josh Bauer