need help "adjusting" how the member number is displayed:

[jacobsen1]

OK, I messed up the import from SMF. Somehow the member numbers ended up being a little too high, and our members want their numbers displayed in the area under their username...

Here's the code I have in the postbit_legacy now to do this:

<b>Member#:</b> $post[userid]

our member numbers are off if they're over 175 by 338... So if it could be written something like this:

if userid < 176
     <b>Member#:</b> $post[userid]
else
     <b>Member#:</b> $post[userid-338]

it should work. Can anyone here show me how to write that in php so it would work? Basically I just need to know how to write an if statement, and how to subtract 338 from the userid to get the displayed number... It should be possible, and will save me doing a fresh install and import to a new db.

Thanks,
Ben