If you are going the wrapper route, take a look at UIB...
http://www.progdigy.com/modules.php?name=UIB

From the readme...

Why to use UIB ?
* You need a fast access to database.
* You need a threaded access to database.
* You want to use indifferently Interbase, FireBird or Yaffil.

Which version of Database are supported ?
* Interbase 6.00, 6.01, 6.02, 6.5, 7.0, 7.1, 7.5.
* Firebird 1.02, 1.03, 1.5, 2.
* Yaffil 1.0.xxx

Which version of compilers are supported ?
* Delphi 5.
* Delphi 6 & PE.
* Delphi 7.
* BCB 5.
* BCB 6.
* Kylix 3.
* FreePascal V1.9.x (Win32 & Linux).
* Other versions are not tested.

I am using it with Delphi 2006 (not officially supported, but I've had
no problems) and embedded FB 2.0.3.1298. Works great!

--- In firebird-support@yahoogroups.com, "Norman McFarlane"
<norman@...> wrote:

>
> Minor finger problem there, Kurt. What wrapper did you use to

interface with

> the DLL? I know of one written in Delphi 6, otherwise one has to use

the C

> wrapper.
>
> Regards,
>
> Norman McFarlane
>
>
>
>
>
> _____
>
> From: firebird-support@yahoogroups.com
> [mailto:firebird-support@yahoogroups.com] On Behalf Of Kurt Federspiel
> Sent: 15 February 2008 04:59 AM
> To: firebird-support@yahoogroups.com
> Subject: Re: [firebird-support] Firebird / Delphi newsgroup
>
>
>
> If you plan to sue them, I suggest writing the custom classes that

use the

> fbclient.dll.
>
> That's what I did...the writing, not the suing... ;)
> Kurt.
>
> ----- Original Message ----
> From: Norman McFarlane <HYPERLINK
> "mailto:norman%40performancecounts.co.za"norman@...>
> To: HYPERLINK
> "mailto:firebird-support%40yahoogroups.com"firebird-support@...
> m
> Sent: Thursday, February 14, 2008 7:26:36 AM
> Subject: RE: [firebird-support] Firebird / Delphi newsgroup
>
> Thanks Tim, but no, I plan to sue either Interbase Express

components, or to

>
> write a series of custom classes that tap into the fbclient.dll

directly.

>
> Regards,
>
> Norman McFarlane
>
> _____
>
> From: firebird-support@ yahoogroups. com
>
> [mailto:firebird--support@ yahoogroups. com] On Behalf Of Tim
>
> Sent: 14 February 2008 03:50 PM
>
> To: firebird-support@ yahoogroups. com
>
> Subject: Re: [firebird-support] Firebird / Delphi newsgroup
>
> Are you already using a set of Database interface components?
>
> If not, I can highly recommend IBObjects, even though I don't use them.
>
> Regards
>
> Tim
>
> At 13:20 14/02/2008, you wrote:
>
> >Hi all,
>
> >First post here.
>
> >I am working on a db conversion from MySQL to Firebird with a Delphi 5
>
> >front-end.
>
> >I need to pose a question or two about D5 and Firebird, but believe

this is

>
> >the wrong forum. Can somebody direct me to the correct forum where

I may

>
> ask
>
> >such questions?
>
> >
>
> >Regards,
>
> >Norman McFarlane
>
> >----------- --------- --------- --------- --------- --------- --
>
> >[Note from Moderator: allowed this time, for long enough for you to
>
> >explain what data access components and Firebird version you're
>
> >using. With enough information, someone may be able to suggest where to
>
> go.]
>
>