Should you have been misled about the capabilities of the iBook G3
portable PowerPC-based Apple computer you bought online, you may
be able to return it; misrepresented products may be returned if you
bought through such places as eBay, etc.
Also, the name iBook has been re-used, it currently not only applies to
old vintage or obsolete Apple portable PowerPC G3/G4 computers, it
also applies to the newer iBooks ebooks, applications, software, and an
author application where later spec computer or device systems are
needed to utilize their function. But not current portable computers.
For relatively inexpensive Intel-based white polycarbonate Apple portable
computers that could run Snow Leopard 10.6.8 or Lion 10.7, you may find
some resellers of repaired or used stocks, with Core2Duo processors,
and these MacBook entry-level models replaced the PowerBook/iBook G4
builds in 2006, then were discontinued by 2010. Now there are MacBook/Air
MacBook/Pro models, the latest models are rather different in build & OS X.
everymac.com has information about most all Macs, including portables
and their years of manufacture, specification, and other details.
So, I'd check into the returns situation, and get some model of more recent
build; even a repaired one with a limited guarantee could be OK. Depending
on what your expectations are, you may find a deal, or a disappointment in
trying to find a bargain without more information on what their limits are.
Older models no longer made appear in online resale sites, some companies
repair and resell a variety and their inventory is changing all the time. But other
resellers may not really know anything at all about the items they sell on ebay.
A local Mac user group may be helpful with locating something nearby. Or you
could try some online resellers who have a good reputation among Mac users.
In any event...
Good luck & happy computing! 🙂