Prestige Class Rough

I have begun playing with the Class Construction Engine from Shadowcraft
Studios (search google, it is an easily found pdf) and have a rough here of
my first attempt at using it. Please pick this apart mercilessly, as I am
trying to get it down and balanced before developing a series of Prestige
Classes I have in mind.
Be brutal, I am trying to perfect this process and this is my first attempt.
Thanks,
Loki, DM
Warriors of the Balance: The Rise of Dukagsh Campaign
New Orleans, La

Seeker Prestige Class
Requirements: 4 ranks each in 4 different knowledge skills
                    4 ranks in Gather Info
                    Feat- Skill Focus (Gather Info)
                    Must have completed a mission for the Seekers as a lower
level member. This mission must have resulted in                     adding
new and unique knowledge to their database
HD: d6
BAB: As Bard
Saves: As Bard
Weapons: Simple
Armor: Simple and Medium
Skill Points/Lvl: 6+Int Bonus
Class Skills: Decipher Script, Gather Info, Bluff, Diplomacy, All Knowlegde
Skills (gaining points in unusual knowledge skills is dealt with on a case
by case basis by the DM according to what Seeker Libraries or resources are
available for them to learn from in the current sphere)

Abilities and Bonus Feats gained by Level
1-Seeker's Code, Spell Ability, Seeker Knowledge- as bardic knowledge but
requires use of Seeker facilities or those of a Sage/Mage/Psion friendly to
the Seekers.
2-New Language
3- Trustworthy Feat (Song and Silence p40)
4-New Language, Skill Focus Feat (Any knowledge skill)
5- When In Rome (see below) +2
6-New Language
7- Obscure Lore (Song and Silence p40), When In Rome +3
8-New Language
9- When In Rome +4
10- Master Linguist (Portals and Planes p30, Legends and Lairs Publishing)

Seeker's Code- (need some help here. TRying to create a minor code of
behavious geared around information gathering and my inspiration seems to
have fled, ideas are welcome and encouraged)

Bonus Languages: May be chosen from any that the Seeker has either been
exposed to, has access to a teacher for, or can research (DM discretion. I
tend to include the following-Xixchil, Grommish, Gifspeeq, Hadoz, Gnome,
Elven, Orc, Lizardman, Dralasite,Etc)

When In Rome (ex)
At 5th Level the Seeker has been exposed to enough alien cultures that he
gains an intuitive grasp of new situations and mores. These sharpened social
instincts grant a +2 insight bonus to Reaction Rolls, Diploamcy, Sense
Motive, Gather Info, and Bluff when dealing with unfamiliar cultures. This
bonus increases to +3 at seventh level and +4 at Ninth Level.

The Seekers are the information brokers of WildSpace. The Prestige Seeker is
a higher level member of the organisation who has focused exclusively on the
gathering and translating of information from exotic sources. Fabled for
their ability to correlate obscure knowledge with current situations they
are the ultimate reasearchers. Due to the wildly varied spheres and planets
they travel Prestige Seekers gain an uncanny knack for being able to relate
to aliens on their own terms, and are prized on exploratory vessels for
their ability to sidestep misunderstandings in most first contact
situations.