The number of smaller fixes and adjustments might make it worth a closer look.

Changes since last version:
*If user tries to send an instant msg when the system tab is active, aICQ will complain and state that messages must be sent to another contact, not to the aICQ tab

(I have received numerous false bugreports about this, ppl have tried to send messages not realizing they are in the wrong tab)

*The hidden way to call font selector (by clicking the copyright sign at the bottom of message window) will now no longer result in Thing locking up if you hold down mouse button for too long.
*Fixed a redraw bug in contact list window which would show itself when the window was iconified and the active "tab" was being toggled, and the area of the iconified window was partly the same as the previous work area of the window.
*After pasting text into message input field (with CTRL+V) the cursor was not restored. Bug was introduced in the NAS2006-release.
*Sometimes the 'typing notification icon' would get stuck if a user was in the midst of typing something when he suddenly went offline for one reason or another. This should be fixed now.
*Fixed 2 places in the code which would result in ILLEGAL AES CALL errors under Single TOS.
*New experimental feature: By pressing F10 you can strip down the contact list window. Nice if you want to make full use of your desktop space! A second press on F10 will toggle back to normal mode. Note that this setting will be stored to the config file.
*Right clicking on the system tab (in Message Window) will bring up the popup where you can change your connection status.
*When toggling (with TAB) between open tabs the system tab is no longer excluded. Those who want the old behaviour can change it back in preferences dialog, under "Msg window"
*The vertical slider of the contact list will now only be shown in case it is actually needed.
*Now you can configure aICQ to only show the online contacts. Setting is found in preferences window, in "Contact list" section. NOTE: Offline contacts can still be visible in the list, provided that they have an open TAB.
*It seems like the long time lurking bug that on rare occasions resulted in "error 090" has been fixed. This bug would hit rather often, if aICQ was unregistered. Thanks to ggn, Karsten and a few other bug hunters

*Regardless of the font height used in contact list, aICQ will now reserve (at least) 16 pixels of height for each contact. This ensures that there will always be enough room to fit the status icon.
*AtarICQ now uses the built-in EXIST() call from the RUN!Lib. The previously used wrapper was not 100% compatible with long filenames. This means that logging chat history works under MagiC even for UINs that are >8 chars.
*Fixed an annoying bug made aICQ sluggish upon switching to another TAB, caused by redrawing whole contact list instead of only the necessary parts.
*Right clicking on empty space on the TAB bar, will open up a popup menu, "Create TAB for contact", from which you can create a new TAB for the desired contact. This popup can also be opened through the keyboard: CTRL+T
*In the popup menus to "Send Contact" and "Create TAB for contact" an icon will now indicate the online status for all the listed contacts.
*New keyboard shortcuts added:
- CTRL+<1> = Change online status
- CTRL+<0> = Go offline
- ALT+S = Open popup menu to change online status (works from Message Window or Contact List)
*Opening User Info Dialog for the selected contact through CTRL+I was broken, fixed now.
*Removing a contact from the contact list (permanently) though SHIFT+DELETE was not working properly, only the corresponding TAB was removed. Fixed now
*Forgot to make a few text objects transparent. Now aICQ looks a bit better when AES uses textures as dialog backgrounds.
*Fixed keyboard shortcuts in preferences dialog
*Fixed aICQ to work better with the new floating windows of XaAES
*Removed some stupid debug messages that were printed to console in the 0.168 release.
*The implementation of the ignore list has been completely rewritten. The old solution could in some cases lead to the config file becoming corrupted. The list of UINs to ignore is now saved into a separate file (killfile.icq), located in $HOME.
*Experiemental support for using a textured background in the contact list. At this time, only IMG-files are supported.
Read more and download AtarICQ here: http://www.ataricq.org