Question

In Glycolysis my textbook says that fructose 6-phosphate is written as Fructose 1-P, is that right???

Answer 1

No, F-6-P. The number represent where on the molecule the phospohor chain is bound, therefore changing the number would change the molecule.
You might be thinking of Fructose-1,6-Biphosphore, which is written F-1,6-P

Answer 2

No-look carefully at the structure of the molecule and check the numbering of the carbons.

Answer 3

Found this, where F-1-P can enter teh Glycolysis, but it's not considered a part of the Glycolysis.

fructose-1-phosphate → dihydroxyacetone phosphate + D-glyceraldehyde
ATP + fructose-1-phosphate → ADP + fructose-1,6-bisphosphate + H+
Source- http://metacyc.org/META/NEW-IMAGE?type=COMPOUND&object=FRU1P