As i feel there is a bit of misunderstanding of the concepts involved first a few general explanations.
To be precise AIX doesn't "support fonts" at all - X-Windows is supporting the fonts. X-Windows is provided with AIX so the difference isn't all too obvious, but in fact X-Windows is (in one respect) a generic way of handling all things graphical, including fonts.
Any X-Windows system consists of several parts, which might be networked:
1) an X-server. This is the part which handles the graphical display. Think of it as a driver for a graphic card with a network interface and a standardised protocol (the X-protocol, default port 6000tcp) to use its services.
2) a window manager. This is the part which uses one (or several) X-servers to create a display. It decorates windows with borders and a title bar (along with the functionality built into these elements, like resizing, closing, etc.), handles change of focus between windows, etc.. An example for sucha a window manager would be mwm (Motif Window Manager), which is supplied with AIX, another would be fvwm (an open source development), Enlightenment and many, many more. Desktop environments like KDE and Gnome are basically window managers with a lot of additional functions.
3) the font manager. It renders all the fonts the various devices (displays, printers, ...) will use and provides them over the network (default port 7100tcp) to the X-server(s).
Right. First, there are some standard formats for X-fonts, the most common being "PCF" (portable compiled format). Most font servers are designed to handle these formats, but not TrueType, which is a Microsoft-only font format (actually a pretty crude one and the M$$-fonts are dumbed-down and uglyfied Adobe-fonts, but that only as an aside). There are font-servers which can handle Truetype-fonts, though, and you have to make sure you are using one which can do that.
Second, you need not only to copy the font file but also make the font server aware of it. Here is the process described. You should then be able to view the font using the "xfontsel" utility. You can also add alias names for the fonts using the "fonts.alias" file (see the manpage or the AIX documentation for a detailed explanation of the file format).
I hope this helps.
bakunin