3725 Router question

brought a used cisco 3725 with an IOS ver 12.2(15)T5

according to the SDM installation the SDM supported IOS versions are 12.2(11)T6 or later 12.3(2)T or later 12.3(1)M or later 12.3(4)XD 12.2(15)ZJ3. Does it matter that we do not have the IOS listed above we tried to turn on the Telnet with ssh that command does not exist and the https server also does not exist. When I try to log into the SDM it say that the telnet password is incorrect even though I have changed it through the console several times.
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nprignanoConnect With a Mentor Technical ArchitectCommented:
the SDM and your IOS are incompatible.  You need to change the IOS and reinstall the SDM:

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