Yes good advice , dont touch it if its only a little dust , as they say a little dust wont hurt the views , but !!! scratches definatly will .
On the diagonal Be very careful as the alliminum coating is soft and scratches easily , I use a can of compressed air I got at 'Camera House' for $20 and it blast's dust and grime offf very well , just dont get to close as you blast away .
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As AstroBot said just learn how to use it and enjoy .
A couple more things , these scopes take a long ( 1 Hour+) time to settle down when you first take them from a warm house to the outside cold
, so the images wont be the best until the glass settles down , its because of the closed tube design , thats the way Maks are but give great views when acclimatised . Lots of Mak owners leave them covered in the shed .
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And hows about a few photos of the scope , mount and dust ?
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That always helps '
Brian.