Blackpearl; here's the info I needed to change in my inc_iconfiles.asp:
Const strIconEditorBigCharacter = "ox_bigchar.gif|25|24"
Const strIconEditorBold = "ox_bold.gif|25|24"
Const strIconEditorCenter = "ox_center.gif|25|24"
Const strIconEditorCode = "ox_code.gif|25|24"
Const strIconEditorEmail = "ox_mail.gif|25|24"
Const strIconEditorFlash = "ox_flash.gif|25|24"
Const strIconEditorHighlight = "ox_highlight.gif|25|24"
Const strIconEditorHR = "ox_hr.gif|25|24"
Const strIconEditorLeft = "ox_left.gif|25|24"
Const strIconEditorImage = "ox_image.gif|25|24"
Const strIconEditorItalicize = "ox_italic.gif|25|24"
Const strIconEditorList = "ox_list.gif|25|24"
Const strIconEditorMarquee = "ox_marquee.gif|25|24"
Const strIconEditorPre = "ox_pre.gif|25|24"
Const strIconEditorQuote = "ox_quote.gif|25|24"
Const strIconEditorRight = "ox_right.gif|25|24"
Const strIconEditorSpell = "ox_spellcheck.gif|25|24"
Const strIconEditorStrike = "ox_strikethrough.gif|25|24"
Const strIconEditorSub = "ox_sub.gif|25|24"
Const strIconEditorSup = "ox_sup.gif|25|24"
Const strIconEditorTeletype = "ox_tt.gif|25|24"
Const strIconEditorUnderline = "ox_underline.gif|25|24"
Const strIconEditorUrl = "ox_url.gif|25|24"
You might not need them all, some of them are for the 'extended' post buttons.
Be sure to make a backup of your inc_iconfiles.asp file, and then REPLACE the current values for each strIconEditorxxx by the ones listed above.
Do NOT simply add them, cause that'll give you some errors about redefined variables.