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EmailSiphon is an email address harvester used by spammers, I would personally ban that if it entered my sites:)
edit: OH, and I believe its the polite custom here to welcome newer members to WebmasterWorld, so Designfreak, welcome to WmW :)
>Zeus 9718 Webster Pro V2.9 Win32
Zeus is a themed directory builder that is often mentioned in these and other fora. The number, 9718, is the IQ of that particular copy of the program and refers to the amount of "learning" the robot has done with the user refining the search phrases that trigger whether the site being spidered is to be included in the database. 9718 is quite a high IQ which means that you site will probably be listed in quite a comprehensive directory. Also, it is a Pro version meaning that someone paid for it to get additional features. In this case I would consider myself fortunate to be looked at by this particular Zeus.
Hope this helps,
Zeus is used to build (usually) very niche directories based around a theme. If you have been looked at then it means someone is looking for sites to include in their directory. Whether your site would fit the bill or not is unknown untill they send you an email letting you know you have been included. The idea of Zeus is two fold:-
1. to build directories, &
2. to get incoming links from sites listed in the directory.
It is probably not a competitor, I wouldn't be too worried.
I doubt that SEs would penalise you for being linked, rather the opposite. Depending on how well the directory is constructed, some of them may be seen as authorities by the SEs giving the link to you a boost.
Relax, Don't Worry.